Part IV - Changed Conditions, Transmission, Memory, and Continuation

MDPE.6 - Choose Whether and How to Use a Music-or-Dance Result under New Conditions

Status: Stable

Type: DPF pattern body

Primary working result: a receiving-use decision for one musical or movement result under changed conditions. The decision says: use it as obtained, revise an identified subject or relation before use, keep a distinct receiving branch, reject the current options, obtain one decision-changing observation, or name the missing Work and the applicable Method needed to answer it. It does not perform the revision, establish transmission or lineage, grant authority, or schedule later Work.

MDPE.6:0 - Use This When

Use this pattern after a direct Music, Dance, teaching, engineering, or capability-development Method has produced or proposed a result and the receiving conditions differ enough to make immediate reuse doubtful.

Changes that commonly matter include a different:

• dancer, musician, body, prosthesis, instrument, controller, partner, or ensemble;
• room, floor, stage, recording medium, software, AI service, or publication format;
• participant population, teaching setting, social event, recognition arrangement, or production constraint; or
• intended performance, learning, interaction, or cultural-development use.

The recognizable failure is choice by label. A team keeps the same name—score, routine, style, technique, course, arrangement—and assumes the result can be used unchanged. The notes or visible steps survive, while timing, articulation, partner communication, capability, safety, consent, or production relations fail. The opposite failure is to call every difference a new style or to add a generic “adaptation process” after a direct Method already gave the needed answer.

The practical question is:

Given this direct result and these receiving conditions, should we use it as obtained, repair it for this use, preserve a distinct branch, stop, or gather one observation that could still change the choice?

First use direct arrangement, transcription, choreography, inclusive-teaching, instrument-design, Systems Engineering, rehearsal, and capability-development Methods for the Work that creates or changes their results. Use C.17 only when the choice needs a supported characteristic claim about a named bearer. Continue here only when a Music-or-Dance receiving-use choice remains.

A compact teaching unfolding is:

1. name the chooser, source result, receiving use, and changed condition;
2. keep only available options: use as obtained, revise before use, branch, or stop;
3. compare them through the Music-or-Dance relations that the receiving use cannot lose;
4. ask whether one affordable observation can still change which option survives; and
5. return one decision with its limits and next question.

This is a readable unfolding of the choice Work, not an architecture view, a fixed project lifecycle, or proof that every case must be performed in this order. Use A.22.CGUS only when the branches and returns of a maintained unfolding need their own description.

Do not use MDPE.6 for a choice made inside one ongoing improvisation or performance, for historical lineage, for transmission to another holder (MDPE.17), for performer capability (MDPE.10), or for the later cultural continuation of a practice (MDPE.19).

MDPE.6:0.1 - Working Distinctions

Use narrow names—arranger, choreographer, teacher, dancer, musician, partner, performer, ensemble, project team—rather than replacing them with System. A technical System, instrument, robot, or AI service remains named when it is the actual changed subject or enabling element. The chooser is an Agent with enough agency to make the decision.

MDPE.6:1 - Problem

Music and Dance results cross conditions constantly. A phrase moves between instruments. Movement is translated between bodies. A social-dance figure enters another floor culture. A choir performance becomes training material for a model. A performer uses a new prosthesis. A teaching task enters a mixed-abilities group. A live practice is compressed into a recording or short video.

Several different things can happen under one familiar name:

• a function is preserved through different means;
• visible material is preserved while timing, interaction, or meaning changes;
• a receiving variant adds possibilities unavailable in the source configuration;
• one load-bearing relation is lost, although a superficial likeness remains; or
• both source and receiving variants remain useful and should not overwrite each other.

Without a receiving-use decision, teams either copy too literally or redesign without preserving what made the source useful. They also confuse separate claims. A derivation claim becomes a lineage claim; one successful occurrence becomes demonstrated performer capability; a technical recommendation becomes permission; a chosen revision is reported as completed Work; or a renamed branch is treated as a newly established style.

A bounded project can choose a usable receiving treatment while leaving population recognition, historical ancestry, transmission, retention, and long-term cultural effect open.

MDPE.6:2 - Forces

MDPE.6:3 - Solution

Apply C.11 to the choice for the changed Music-or-Dance use. Direct Methods supply the concrete result; MDPE.6 supplies a domain-specific option set and comparison rule over continuity, receiving fit, repairable failure, derivation, loss, and preservation of alternatives.

MDPE.6:3.1 - Bind one chooser and one receiving use

State one sentence:

[chooser] must decide how [source result] may be used for [receiving use] after [conditions] changed.

Name the result’s kind instead of using material or practice as an umbrella. A score, sounding occurrence, movement description, Method, dancer–prosthesis configuration, class design, and event arrangement are different subjects. Name each when the decision governs several of them.

The chooser is the C.11 DecisionSubject: for example, an arranger responsible for a concert recommendation, a choreographer responsible for maintained material, or a teaching team responsible for a receiving class. Technical ability, authorship, funding, or platform control does not silently grant authority. Obtain authority, permission, consent, responsibility, and commitment through their governing Methods.

MDPE.6:3.2 - Establish the direct result and the changed conditions

Use the direct Method’s actual result. Record only differences that can alter the receiving choice. Useful condition families, offered as examples, are:

• performer and body configuration: morphology, effectors, sensing, control, fatigue, injury, prosthesis, robot, or AI contribution;
• musical or movement carrier: instrument, tuning, range, notation, floor, contact, spatial relation, partner, ensemble, or medium;
• performance use: social interaction, stage, competition, installation, recording, class, rehearsal, or publication;
• participation and support: consent, safety, access, teaching capability, venue, equipment, time, cost, or maintenance; and
• cultural relation: expected recognizers, lineage claim, source attribution, scene boundary, or retained alternatives.

Keep the smallest set of condition families that can change the decision. Unsupported differences remain unknown rather than assumed loss or equivalence.

MDPE.6:3.3 - Form the available options

The default option family is:

Omit impossible options. Do not invent them inside late-stage choice Work. If candidate material or action options still have to be generated or reframed, use the applicable creation Method, MDPE.9, C.18, or the applicable current FPF pattern for unfinished next-action recovery. A capable Agent begins the selected local change only after the separate choice, through Work that enacts the applicable direct Method. That change Work does not generate the option set for MDPE.6.

MDPE.6:3.4 - Apply a Music-or-Dance comparison rule

Make the rule readable before calculating or scoring anything:

1. eliminate an option that violates a receiving-use veto such as consent, safety, performer capability, a required musical or movement relation, or a non-negotiable production constraint;
2. among the survivors, compare supported use, repair burden, known loss, uncertainty, derivation clarity, and whether a valuable source or receiving alternative disappears;
3. keep ties and incomparable options visible rather than hiding them in one score; and
4. prefer another observation only when an affordable observation can change the surviving option set or the choice among survivors.

The relevant relations are case-specific. Music can require range, articulation, timbre, phrasing, pulse, balance, ensemble cueing, or recording behavior. Dance can require effort, weight transfer, spine, focus, timing, contact, partner readability, floor use, consent, or spatial safety. These are examples of decision-bearing characteristics, not a checklist to complete.

Use C.17 when a characteristic claim needs support and C.11.CRC when the decision depends on what one finite candidate contributes relative to the receiving configuration. Neither characterization chooses or authorizes the use.

MDPE.6:3.5 - Decide whether to probe again

When a feasible observation could alter this choice, name the most useful rehearsal, partner trial, instrument comparison, recognition task, safety check or other direct probe. State what result would change the choice and what the probe costs. Explain an inquiry limit when it matters to the receiver. A settled choice with no relevant inquiry alternative needs neither an invented test nor a statement waiving one.

Probe again only when the observation can remove or create a survivor, break a tie, show that the current set should be rejected, or reveal that the question belongs elsewhere. Do not keep probing merely because uncertainty remains. If the observation would change only the implementation of an already-selected option, close this choice and plan the later Work separately.

MDPE.6:3.6 - Return the receiving-use decision

Return, in plain language:

chooser and receiving use:
source result and changed conditions:
available options:
must-conditions and comparison basis:
decision: use as obtained | revise | branch | reject current set | probe again | neighboring question
preserved, changed, added, lost, and unknown relations that justify the decision:
authority, permission, capability, or evidence still required:
condition that reopens the decision:

This is the domain form of a C.11 ChoiceResult, not a new record kind. Use the shortest form that makes the choice and limits recoverable.

If the decision is revise or branch, a capable Agent performs Work that enacts the applicable direct Music, Dance, teaching, production, event, tool, or engineering Method and that makes and tests the selected change. If a broader development action or choice remains, use A.15.7 during current Work or C.11 for an already formed bounded choice. Use planning Methods only after the choice; a decision does not schedule an edit, rehearsal, lesson, performance, or release.

MDPE.6:4 - Worked Cases

The two main cases are constructed replays. Their sources establish the direct Methods; the named scores, phrases, rehearsals, characteristic readings, and decisions below are illustrative rather than reported source occurrences.

MDPE.6:4.1 - Music: revise an automated arrangement before concert use

The direct Method from McCloskey and colleagues receives a multipart MusicXML score and a target set of monophonic instruments or voices with playable ranges. It searches transpositions, part assignments, and octave changes. A feasible result preserves rhythm, note durations, rests, and bar lines within its scope. It does not establish balance, timbre, articulation, performer capability, concert suitability, or permission to release.

Suppose Arrangement-Q17-A is playable by a school ensemble. A rehearsal supports its rhythmic entries and ranges but shows that the current balance masks a required antiphonal response. Articulation remains uncertain.

The arranger compares:

• use the arrangement as obtained;
• change the dynamics and one voice allocation before use; or
• keep an unrepaired branch.

The antiphonal response is a must-condition. Use as obtained fails it. Branching preserves the failure. The described low-burden revision keeps the feasible assignment and repairs the relation. Another articulation observation may refine the edit but cannot change the need for it.

The decision is revise before use. It identifies the arrangement, failed relation, proposed repair, concert-use limit, and reopen condition. It neither edits the score nor authorizes rehearsal or release.

Direct source: Matthew McCloskey, Gabrielle Curcio, Amulya Badineni, Kevin McGrath, and Dimitris Papamichail, Automated Arrangements of Multi-Part Music for Sets of Monophonic Instruments (2023), checked 2026-08-25.

MDPE.6:4.2 - Dance: keep a translated phrase as a distinct branch

Stopgap’s Translation Method begins with movement made by one dancer and a receiving dancer with different physicality. Dancers observe effort, spine, focus, direction, rhythm, and detail; they find a correlative version rather than imitate one conventional shape. The direct Work can return translated versions and a choreography decision. It does not settle every later identity, partner cue, permission, or cultural claim.

In this constructed case, Ada, a wheelchair dancer, originates Phrase-P3: an eight-pulse curved travelling phrase whose change of focus invites the partner’s answering turn. Bo, a standing dancer, develops Phrase-P3-T through translation with Ada. Direction, pulse and the exchange of focus remain usable, while Bo’s weight changes, elevation and contact geometry differ. The standing version is a receiving translation, not a norm against which Ada’s movement is an approximation.

The direct choreography Work has also produced a compact shared version, Phrase-P3-C, with less travel and a common turning cue. Rehearsals with the named partner show that both C and the pair of conditioned P3/P3-T versions support the intended eight-pulse exchange. Consent, comfortable contact and enough space are satisfied by both treatments in this studio. The unresolved decision is which versions to maintain for the next teaching and performance block; translation itself need not be repeated.

The choreographer compares two usable treatments:

• maintain C as the one taught and rehearsed version, retaining the earlier material as source documentation; this saves explanation and rehearsal time but removes the contrast between Ada’s rolling travel and Bo’s changing elevation from the block;
• maintain P3 and P3-T as conditioned branches, with their different contact and cue instructions; this preserves that contrast but requires two descriptions, a separate partner briefing for each and fifteen additional rehearsal minutes when the cast changes.

For this block the choreographer chooses the branches. Exploring how the same invitation changes through these two performers is part of the intended teaching and artistic result, and the partner and rehearsal time are available. The gain earns the stated cost; a generic appeal to diversity would not settle it. The resulting descriptions name the originating movement, the translation, their common exchange and their different execution conditions. They do not assert a historical lineage beyond this construction or make the versions interchangeable.

The next receiving decision would change if the programme contracted to one short demonstration in which only the common exchange mattered, or if the extra partner rehearsal displaced a required ensemble run. C would then be sufficient if its supported conditions still held. The choreographer need not preserve two active branches merely because two versions exist. In the present choice another trial of the already-supported exchange would not change that trade-off; a newly reported difficulty in one contact transition could.

The decision is branch for the stated block. Permission, maintenance authority and the later description and rehearsal Work remain separate from this choice. The example is an authored application of the reciprocal Translation approach, not a reported Stopgap production or a universal rule for bodies.

Direct source: Stopgap, Inclusive Choreography — Translation, text checked 2026-10-04. The page supplies the translation approach; the dancers, phrases, alternatives and receiving decision above are constructed.

MDPE.6:4.3 - Stop when the direct Method already returns the whole answer

A performer-specific prosthesis design-and-trial Method can configure Jason Barnes’s drumming prosthesis and establish bounded control, rebound, stroke, synchronization, and performer-validation results. DanceAbility can adapt improvisational movement and teaching for a mixed-abilities group. JIZAI ARMS co-design can produce and test an exploratory equipped-body prototype.

Use those direct Methods when their result is the whole current question. Enter MDPE.6 only if an identified rhythm, movement, Method, description, or performance relation must also cross into another receiving condition and the direct result does not decide how it should be used. This boundary prevents the pattern from becoming a generic wrapper around engineering, teaching, or choreography.

MDPE.6:5 - Recognition and Assurance

The decision is usable when a cold reader can answer:

• What direct result already exists, and which Work enacting which Method produced it—or, if it is only proposed, which MethodDescription proposes it?
• What receiving condition and intended use changed?
• Who is the chooser?
• Which options are actually available?
• Which Music-or-Dance relation is a veto, and which differences are trade-offs?
• What is preserved, changed, added, lost, or still unknown for each serious option?
• If further inquiry is being considered, or an inquiry limit matters to receiving use, why is the proposed probe worth or not worth its cost?
• What was chosen, rejected, or passed to another question?
• Which authority, permission, capability, implementation, transmission, lineage, or cultural claims remain separate?
• What later observation can reopen the decision?

Assure the choice from the direct result and evidence it actually uses. A familiar label, one filmed performance, publicity, a prototype, a published course, or official endorsement does not establish receiving fit, prevalence, effectiveness, style identity, or continuation. Expert judgement is acceptable with a stated basis and uncertainty when direct evidence is unavailable.

MDPE.6:6 - Common Failures and Repairs

MDPE.6:7 - Consequences

MDPE.6:8 - Rationale and Source Use

Agents perform Work that enacts direct Music, Dance, teaching, control, instrument-design, and Systems Engineering Methods to create or change their respective subjects. Current FPF already characterizes bearers and governs local choice. MDPE.6 adds the recurring Music-and-Dance construction of use as obtained, revise, and branch, together with a comparison over receiving fit, embodied or musical continuity, repairable failure, derivation, known loss, and preservation of useful alternatives.

Reopen the decision when the source result, receiving condition, intended use, option set, must-condition, evidence, chooser, authority, permission, or probe value changes enough to alter the choice.

MDPE.6:9 - Relations

MDPE.6:End

MDPE.17 - Design and Test Transmission of a Music-or-Dance Method

Status: Stable

Type: DPF pattern body

Primary working result: an identified receiving Method variant, observations from representative receiving Work, transfer limits, a separately qualified source-contribution status, and a decision to retain or change the transmission arrangement, or stop the proposed receiving use. If source contribution is not supported, preserve the receiving result and say only that the source was used; do not promote resemblance or succession to transmission.

MDPE.17:0 - Use This When

Use this pattern when a lesson, demonstration, score, choreography, recording, prompt, model, software package, or copied artifact has reached another practitioner and someone is about to say that a Music-or-Dance Method was transmitted.

The costly difficulty is easy to recognize:

• dancers reproduce one shown phrase while the teacher supplies every cue, but cannot use the Method with another partner, tempo, phrase, or music;
• musicians read one score or repeat one example, but the intended rehearsal, interpretation, improvisation, or ensemble Method does not appear in later Work;
• an event guide reaches an organizer, while the local event is run through another practice;
• code, model weights, movement traces, or a control policy are copied to a robot or AI service and the copy is called learned practice;
• the receiver creates a useful changed variant, but the project calls every difference a transmission failure; or
• one successful occurrence is reported as capability, population adoption, or long-term continuation.

The engineering question is:

What source content and receiving conditions should we arrange so that a receiving Agent can perform representative Music-or-Dance Work under a receiving Method, and what observation would show what transferred, what changed, and whether further change is needed?

A compact teaching unfolding is:

1. name the receiving use and representative Work;
2. identify the source content, carrier, provider Work when present, and receiving Agent;
3. choose direct teaching, rehearsal, reconstruction, learning, or control Methods;
4. vary the conditions that matter to the receiving claim and observe receiving Work;
5. distinguish source use, receiving enactment, transfer, retention, and source contribution; and
6. retain the useful received variant; keep the transmission arrangement when it suffices, or select a worthwhile change or stop.

Provider Work, receiving Work, and observation Work can overlap or occur at different times. The list is a teaching unfolding, not a universal cultural process, Work plan, or architecture view.

Use the direct Music, Dance, teaching, rehearsal, reconstruction, robotics, machine-learning, event-programming, or community Method without MDPE.17 when it already returns the receiving Method variant, representative enactment, transfer limits, source-contribution boundary, and a supported continuation decision. Use this pattern when those results remain collapsed or missing after direct Work.

Do not use this pattern merely to decide whether to reuse a result before receiving Work (MDPE.6), to recover a candidate Method from records (A.3.1.MR or MDPE.18), to develop general human capability, or to claim population continuation (MDPE.19).

MDPE.17:0.1 - Working Distinctions

Use teacher, dancer, musician, partner, ensemble, organizer, robot, or AI Agent when that narrow name carries the decision. Use technical System for a model, carrier, instrument, or platform that does not itself choose or learn. A performing whole can include Agents and technical Systems without making every constituent an Agent.

MDPE.17:1 - Problem

Methods do not travel as files. Descriptions, demonstrations, scores, recordings, exercises, prompts, instruments, software, and models can support another Agent’s Work, but they remain descriptions, material, carriers, or tools. A teacher’s successful demonstration is provider Work. A learner’s receiving Work is another occurrence. A copied visible form is not the same result as an enacted Method.

The receiving Method can also change productively. A dancer with another physicality may preserve effort, timing, focus, or partner dialogue through a different visible form. A musician can preserve rhythmic or ensemble relations through another instrument, notation, control interface, or improvisational vocabulary. A robot or AI Agent may use different sensing and control while meeting the same bounded performance demand. Treating literal imitation as the only success criterion can destroy the first useful receiving variant.

At the same time, one successful performance is weak evidence. It may depend on continuous teacher cues, one memorized example, one partner, one tool version, one room, or one context that triggers recall. The performer may already have had the capability; the named source may have contributed little; delayed retention may fail; another context may elicit an old conflicting pattern.

Useful transmission therefore requires more than delivery. Provider and receiving Agents perform the required Work; the receiving Work enacts the received Method, and observation Work obtains evidence proportionate to the intended claim.

MDPE.17:2 - Forces

MDPE.17:3 - Solution

Design transmission around representative receiving Work. Select the source content and receiving conditions, arrange direct provider and receiving Methods, make support and context variation deliberate, observe the receiving Agent performing, preserve useful transformations, and decide whether the transmission arrangement can be retained or needs a worthwhile change.

MDPE.17:3.1 - Begin with the receiving use

State what later decision the result must support. For example:

• admit a movement or musical Method into one performer’s repertoire;
• let a teacher offer a class under stated conditions;
• rely on a pair or ensemble in a performance;
• program a local event under a community Method;
• use a robot, AI Agent, or equipped performer in one performance configuration; or
• choose the next repair to a teaching or reconstruction arrangement.

Then name representative Work. A workshop exercise can be representative for the next lesson without representing social dancing. A short robot test can establish one control envelope without representing a concert. A repeated phrase can show immediate reproduction without showing improvisational use. The receiving claim cannot be stronger than the Work used to test it.

MDPE.17:3.2 - Name source, provider, receiver, and carrier separately

Describe the arrangement in ordinary actor-and-action language:

• What source content is actually used, and how is it used?
• Who performs provider Work, under which direct Method, if a provider exists?
• Which receiving Agent performs which representative Work?
• Which Method should that Work enact?
• Which performing whole—bodies, instruments, partners, software, space, sensing, and control—makes the Work possible?
• Which observer or instrument returns the observations needed by the receiving decision?

The same Agent can occupy several positions. Keep the source, receiving performance and obtained observations distinct where their claims differ, but determine Work identity from the actual occurrence: one Work may enact several Methods. Separate occurrences or constituent Work need their own grounds; position labels do not supply them. A performer can teach themself from a recording. A founder can also teach. An organizing team can receive an event-programming Method while musicians receive performance Methods. A model-development team can configure a robot while the robot later performs Music Work.

Do not draw a source-to-receiver arrow and treat it as causal transmission. A graph can display supported relations, but each relation still needs its own evidence.

MDPE.17:3.3 - Choose what should persist and what may change

Name the transmission-relevant relations for this receiving use. Examples include:

• Music: pulse, articulation, phrasing, rebound, ensemble cueing, relation to musical structure, improvisational response, or live transformation;
• Dance: weight transfer, effort, focus, timing, contact, invitation, partner readability, spatial relation, or response to music;
• human–technical performance: sensing, control, actuation, model use, correction, stop authority, or division of initiative; and
• teaching or event practice: exercise, correction, turn-taking, participation, conduct, access, programme, or feedback relations.

Do not preserve a style label instead of these relations. State which differences are acceptable, which are desired innovations, and which would make the receiving Method unsuitable for the stated use.

MDPE.17:3.4 - Design support and context variation for the claim

Choose direct teaching, rehearsal, reconstruction, learning, evaluation, or control Methods. Then design a probe proportionate to the claim.

Variation is not automatically better. Use it when it can reveal cue dependence, transfer, or generalization for the current decision. A constant-practice condition can be adequate for another claim. Preserve task, exposure, fatigue, order, and support differences that could explain the result.

For human motor learning, context-sensitive expression is one possible explanation when a previously demonstrated performance becomes unavailable. Compare it with lost support, a changed demand, fatigue and intervening learning. Return to the reference condition only when a safe, commensurable comparison can distinguish live explanations and change the next teaching or receiving-use action at worthwhile cost. A performance that was never demonstrated, or a known configuration failure, calls for its own learning or repair work rather than an automatic return test.

For example, if withdrawing a teacher cue coincides with changing the room, restoring one factor while holding the other fixed may help choose between reducing cue dependence and practising across rooms. A returned response establishes availability under that condition; it does not by itself identify a hidden context, prove selection of a different motor memory or rule out fatigue and exposure effects. COIN provides a sensorimotor hypothesis with its own task limits. The receiving claim still requires representative Work under the conditions in which the capability must be available.

MDPE.17:3.5 - Perform receiving Work and classify the result

Observe what the receiving Agent does, not merely what was delivered. Keep these results separate:

1. source available — content or a carrier can be accessed;
2. source used — provider or receiving Work actually relies on named content;
3. receiving enactment — representative Work enacts an admitted receiving Method under stated conditions;
4. transfer — enactment occurs under the changed condition required by the use;
5. retention — enactment recurs after the stated delay and conditions;
6. source contribution — a suitable comparison supports the causal claim about named content or provider Work; and
7. population continuation — a later cultural result owned by MDPE.19 and C.36.

Do not discard a positive receiving-enactment result merely because source contribution remains undecided. Report: “The receiving Agent performed representative Work that enacted variant V under conditions K; source S was used; S’s causal contribution was not tested.” That is more useful than either claiming transmission or calling the whole attempt a failure.

If the observed Work does not enact an admitted Method and only a candidate explanation is available, return the observations to Method recovery rather than inventing a Method from one occurrence.

MDPE.17:3.6 - Preserve the received variant and decide how to continue

Name what the receiving Method variant preserves, changes, adds, omits, or leaves unknown. Keep Method, MethodDescription, material, performing configuration, and capability changes separate. A changed movement phrase is not automatically a changed teaching Method; a changed model is not automatically a changed performer Method.

When the received variant and its supported limits suffice for the intended use, retain the arrangement. If a remaining limitation or worthwhile improvement calls for change, choose the smallest useful repair. Examples include another carrier, clearer demonstration, different exercise, reduced cueing, more representative partner or material variation, a corrected MethodDescription, changed tool or instrument configuration, added feedback, or a source-specific comparison. Select further work only when its attainable contribution warrants its cost and delay. Stop or narrow the proposed receiving use when the required conditions cannot be met.

Return:

receiving Agent, use, and representative Work:
source content and how it was used:
provider Agent and Work, when present:
receiving Method and performing whole:
support and context variation:
observed enactment, transfer, and retention limits:
received Method variant — preserved, changed, added, absent, unknown:
source contribution — supported | not supported | undecided | not needed:
continuation decision — retain arrangement | selected change | narrower use | stop:
condition that reopens the decision:

Keep the report’s claims within what the observed Work and evidence support.

A receiving observation or changed Method variant can also reopen an existing MDPE.14 conflict decision, but only when it crosses a stated limit or changes the same conflict, candidate, comparison, residual tension, moved burden, or representative test. If none of those decision-bearing relations changes, keep the existing conflict result; do not rerun conflict work merely because another receiving occurrence was observed.

MDPE.17:4 - Worked Cases

MDPE.17:4.1 - A partner-Dance transmission trial

This constructed project example illustrates the returned result. Its class is illustrative, and population effectiveness remains untested. A Tarraxo teacher must decide whether dancers P and Q can use a taught partner-coordination Method in the next supervised social practice without continuous teacher cues. The receiving use requires weight transfer, timing, partner-readable invitation and response, musical adaptation, and recovery after an interrupted connection. It does not require a literal copy of the teacher’s phrase.

The source content is the teacher’s local written instruction, two exercises and a demonstration, all constructed for this example. One exercise practises complete weight arrival with a readable invitation; the other varies a two-bar phrase while preserving that invitation and its fit to the selected music. These inputs illustrate this class’s teaching arrangement; the Tarraxo Agency page does not supply them. The teacher performs provider Work through the local teaching Method. P and Q are the receiving Agents. In the first two lessons they perform receiving Work as one pair while the teacher supplies continuous timing and correction cues. The pair can repeat the shown phrase, but that observation supports only teacher-assisted enactment with the original partner and music.

The receiving trial removes continuous cueing and uses three ninety-second dances: (1) the original P–Q pair with an unheard track in the taught tempo range; (2) P with experienced changed partner R; and (3) Q with another experienced changed partner S, with an unexpected pause and restart during the Q–S dance. The teacher observes but does not cue.

P and Q preserve weight arrival, timing, and readable invitation and response across the changed music and partner trials until the interruption in the Q–S dance. After that pause, Q restarts the memorized phrase instead of first re-establishing partner information; S stops the attempt. Seven days later, the original P–Q pair again performs Work that enacts the Method without reteaching under the changed-music condition.

The admitted receiving Method variant therefore preserves the timing, weight-transfer, and partner-dialogue relations, allows a changed visible phrase, and transfers across the tested music and experienced-partner changes. Retention is supported only for seven days with the original pair. Recovery after an interrupted connection remains absent for Q with changed partner S; unfamiliar novice partners, a wider tempo range, and an unsupervised party were not tested. The source content and provider Work were used. No source-specific comparison was run, so their causal contribution is not tested rather than inferred from improvement.

The next transmission change is one exercise in stopping, re-sensing the partner, and rebuilding the invitation before restarting. The next trial repeats the failed interruption condition for Q with two changed partners. Reopen the result if that trial fails, if the intended social setting requires a wider partner or music range, or if a later receiving observation crosses one of the stated transfer or retention limits. Source access, phrase copying, one successful dance, and seven-day recurrence each support a narrower claim than the complete receiving-Method result above.

MDPE.17:4.2 - Music: distinguish receiving performer Work from event-organizer Work

A live-coding performer studies Live Coding: A User’s Manual, examples, and tools. An organizing team separately uses the Algorave guidelines for programme, access, conduct, technological diversity, visible process, and community contact.

At one event, two receiving claims are possible:

• the performer changes code or an algorithmic process during a bounded Music performance under the selected live-coding Method; and
• the organizing team programs and runs the event under the selected event-programming Method.

One successful set does not establish that the organizing team can perform event-programming Work under the Method in changed conditions, and a well-run event does not establish performer capability. Test each through representative Work. For performer transfer, change a relevant musical material, tool, or venue condition. For organizer transfer, change a programme or access condition while preserving the community requirements. Record source use separately; the causal contribution of the manual and guidelines still needs its own evidence.

MDPE.17:4.3 - Robot or AI Agent: copied values are inputs, not transmission results

A team copies code, weights, movement data, or a control policy to another robot or AI system. The copied values configure the technical system. They do not establish that an Agent can perform the intended Music-or-Dance Work under a Method.

When the configured receiver has enough agency to act as the receiving Agent, test representative Work. Adapt source-removal, held-out-task, alternative-demonstration, and incorrect-demonstration probes when the direct machine-learning Method supports them. Bhoopchand and colleagues used such distinctions to separate following, within-episode recall, generalization, and source-specific information use. Their GoalCycle3D tasks and metric are not a universal Music-or-Dance test.

If the technical system merely produces output under another Agent’s control, name it as part of the performing whole.

MDPE.17:4.4 - Stop when source material does not yet yield a reusable Method

The Call provides a songbook, exercises, recordings, datasets, choral AI models, an installation, and governance experiments. These are valuable source materials and project results. The project page does not by itself supply one complete reusable Method for a later choir–model project.

Recover or select the needed candidate Method first through direct inquiry or A.3.1.MR/MDPE.18. Then use MDPE.17 only when a receiving choir, organizer, model-development team, or configured performing whole performs representative Work under an admitted receiving Method.

MDPE.17:4.5 - Music: choose turns at a shared instrument

Loria and colleagues’ marimba study offers a constructive alternative: learners alternate playing and watching. Its full dyads received fifty physical and fifty observation trials per learner; half dyads received twenty-five of each; individuals received fifty physical trials. Exposure and spacing therefore differ. The trained musicians were new to marimba, and the outcome concerned mallet landing accuracy. The reported transfer advantage was specific to the right mallet. Next-day tests included five-minute preparation, with score and metronome available. These conditions do not establish a general advantage for paired music teaching.

Consider a separate constructed lesson. Lea and Ren need a short alternating-mallet phrase for their next supervised ensemble rehearsal. Their teacher has one marimba and one forty-minute lesson. The selected direct teaching Method supplies the phrase, grip and stroke instruction, correction and suitable tempo. The remaining question is how to use the shared instrument. After common preparation the lesson can accommodate fifty short practice trials, changeovers, feedback and a final receiving attempt.

Two arrangements are available. In individual blocks, each learner receives twenty-five physical trials and the teacher’s feedback, while the other can use that interval for unrelated study. In alternating five-trial blocks, each receives twenty-five physical trials and watches twenty-five partner trials. Both use fifty instrument trials and the same teacher booking. The second requires both learners to remain attentive during the whole practice period; it changes their exposure and the spacing of physical practice. Those are part of its cost and possible contribution, not controlled-away differences.

The learners can attend the whole lesson, and their present difficulty includes noticing where an off-centre stroke occurs before repeating it. The teacher chooses alternation for this lesson: the observer follows the score, attends to the intended landing area and discusses a noticed error at the block break; the teacher supplies the technical correction. A peer’s guess does not replace instruction. The score and metronome remain because the receiving rehearsal permits them. The final attempt is performed alone without teacher corrections.

Suppose both learners then play the original phrase with its intended notes, sticking and landing areas. At the next lesson, after the same brief preparation, Lea also performs the receiving variant with the last bar reordered; Ren repeatedly misplaces one left-mallet transition. The teacher retains alternating practice for Lea’s next phrase and gives Ren an individual correction block for that transition before relying on the reordered version. Ren’s successful original phrase remains a useful result. These observations support only the stated prepared, score-and-metronome-supported uses; they do not establish an advantage over the untried individual-block alternative or explain the learning mechanism.

If a learner cannot stay to observe, or if observation prevents needed physical correction within the booking, the individual arrangement remains preferable. If the direct teaching Method already settles this choice and its receiving limits, use that answer. MDPE.17 adds no second teaching decision merely because the lesson used pairs.

MDPE.17:5 - Recognition and Assurance

The transmission test result is usable when a cold reader can answer:

• What receiving use and representative Work are being tested?
• Who is the receiving Agent, and what performing whole supports the Work?
• What source content was actually used?
• Did a provider Agent perform separate Work, or was this direct self-use?
• Which direct Methods govern teaching, rehearsal, reconstruction, learning, control, and observation?
• Which musical, movement, interaction, control, or participation relations should persist?
• Which context and support changes make the test representative?
• What was observed: access, source use, receiving enactment, transfer, retention, or source contribution?
• What receiving Method variant now exists or remains only a candidate?
• Does the supported result suffice, or is a change, narrower use or stop warranted? What later observation can reopen that decision?

Assure only the claim the probe can support. A delivered lesson, copied artifact, one repeated example, one concert, or one model checkpoint is not sufficient for a stronger claim. Human motor studies, robot-learning experiments, practitioner sources, and project pages contribute hypotheses and probes within their own populations and tasks; none supplies universal prevalence or effectiveness.

MDPE.17:6 - Common Failures and Repairs

MDPE.17:7 - Consequences

MDPE.17:8 - Rationale and Source Use

FPF C.36 already distinguishes cultural generation, transmission, recognition, selection, retention, loss, and deliberate intervention. The remaining Music-and-Dance engineering problem is how to arrange carriers, provider Work, receiving Work, embodied or technical performance conditions, context variation, and representative probes so another Agent can perform Work that enacts a received Method variant.

In Jacoby and colleagues’ Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries (2024), a participant taps along with a repeating three-interval click pattern; a valid average reproduction supplies the next stimulus to that same participant. Across iterations the distributions reveal biases towards discrete rhythm categories, with differences among the studied groups. This is a within-person reproduction task, not an observed teacher-to-student chain. It motivates checking how received material changes, but it neither identifies why a particular learner changed nor supplies a universal teaching Method or a cultural-transmission outcome.

Recheck the result when the receiving use, Agent, Method, performing configuration, source content, provider Work, context, support, probe, observation, contribution question, or later continuation decision changes enough to alter the conclusion.

MDPE.17:9 - Relations

No relation above imposes one teaching sequence or claims that provider, receiving, and observation Work must be separate in time.

MDPE.17:End

MDPE.18 - Build Usable Music-or-Dance Cultural Memory and Lineage Evidence

Status: Stable

Type: DPF pattern body

Primary working result: source-traceable cultural-memory and lineage evidence for one Music-or-Dance decision. The result states what each source supports, which lineage explanations remain possible, what embodied or present-practice information is missing, and which inferences the current decision may use. It is evidence about past and present practice, not the past Work, living Method, capability, or cultural continuation itself.

MDPE.18:0 - Use This When

Use this pattern when a creation, reconstruction, attribution, teaching, transmission, restoration, retirement, or practice-development decision depends on what earlier musicians, dancers, teachers, organizers, tools, or communities did—and the surviving sources do not give one ready answer.

Typical costly failures are:

• a video, score, notation, playlist, event page, or software repository is treated as the reusable Method;
• an archived artifact is treated as proof that a living practice continues;
• a founder or institution’s story is repeated as the complete lineage;
• a shared or changed label stands in for continuity or discontinuity of material, Method, performance, or population;
• visible movement or sounding result survives while partner pressure, bodily effort, instrumental technique, correction, or teaching practice disappears;
• the volume of academic, press, official, or platform material is mistaken for prevalence in actual Music or Dance Work; or
• research grows without identifying the decision it can change.

The practical question is:

Which named claims do the available sources support for this decision, over what extent and uncertainty; which materially different explanations remain live; and which inferences are blocked?

A compact teaching unfolding is:

1. name the decision, subject, population, place, period, and intended use;
2. identify the world-side Work, Methods, people, artifacts, and events at issue before interpreting their records;
3. build one source-to-claim table with limits;
4. compare lineage alternatives only where evidence leaves more than one live;
5. identify embodied, performative, technical, and present-use gaps; and
6. return the evidence that the decision may use and the limits of that use.

Source discovery, comparison, and gap testing can loop. The list is not a historical lifecycle or required research schedule.

Use direct oral-history, historical, ethnographic, ethnomusicological, Dance-documentation, archive, process-mining, phylogenetic, network, or preservation Methods when the inquiry requires that specialist Work. MDPE.18 integrates their results for one Music-or-Dance engineering decision; it does not replace specialist fieldwork or formal inference.

Do not use this pattern merely to manage an archive (C.18), test receiving enactment (MDPE.17), choose changed-condition use (MDPE.6), or decide whether a variant is still reproducible (MDPE.19). This evidence can inform those Methods but does not perform their Work.

MDPE.18:0.1 - Working Distinctions

Cultural memory, lineage, origin, founder, repertoire, style, and tradition are useful ordinary expressions, not automatic root kinds. When a decision depends on them, say whether the subject is material, Method, MethodDescription, Work, capability, performance, event, artifact, population, or cultural relation.

A score, onset list, geometric rhythm representation, video, or motion trace is an episteme or artifact about a world-side musical or movement subject. It does not replace the rhythm, movement, performance Work, or performer–environment relations it represents.

MDPE.18:1 - Problem

Music and Dance leave selective traces. A recording can preserve sound while losing fingering, actuation, ensemble cues, room interaction, or the Method that generated it. Video can preserve visible movement while hiding pressure, weight transfer, lead-and-response, muscular effort, attention, sensation, or corrections. Scores, choreography descriptions, prompts, code, instruments, costumes, datasets, and event programmes preserve other selections.

Different carriers therefore support different claims. A performer may retain capability without being able to describe the Method. An archive may preserve records after known holders lose representative capability. A school may preserve a name while changing its Methods. A revival may use old records while creating a new Method variant. A new body or instrument can preserve one function while branching another relation.

Different traits need not share one history. Musical material can come from one line, bodily or instrumental technique from another, event conventions from a third, and the name from a later instituting group. Borrowing, mixture or convergence may require relations that one genealogy would hide; geography, ecology and source bias can affect their interpretation. Use a tree when the relevant traits and supported relations warrant it. Neither a tree nor a network is the default conclusion before those subjects and sources are selected.

Even with these gaps, a festival can publish a qualified attribution note, a teacher can choose a reconstruction trial, and a restorer can identify the next capability test.

MDPE.18:2 - Forces

MDPE.18:3 - Solution

Build only the cultural-memory and lineage evidence that one decision needs. Preserve source identity, link every relied-on claim to a retrievable source passage or item, keep competing explanations when they can change the decision, and state what the records cannot establish.

MDPE.18:3.1 - Bound one decision

State:

• the practitioner or practice-developing Agent who will use the result;
• the decision: for example attribution, reconstruction, teaching content, changed-condition use, restoration, retirement, or next development;
• the musical or movement subject;
• the population, place, period, and receiving use; and
• the claim strength needed now.

For example: “The festival workshop team must decide which Tarraxo creator and teaching claims to attribute to named sources and which movement and partnering distinctions to trial; it does not need a complete global genealogy.”

This boundary prevents both unlimited research and careless inference. A broad subject such as “history of tango” is not yet a decision use.

MDPE.18:3.2 - Identify source objects and world-side subjects

For every relied-on source, ask:

• What object is this—a recording, testimony, MethodDescription, notation, event record, dataset, instrument, publication, or something else?
• Which world-side Agent, Work occurrence, Method, performance, artifact, event, or population does it concern?
• Who created or recorded it, for what purpose, audience, language, and conditions?
• Which part of the source is used?
• What access, consent, attribution, editing, preservation, or future-use conditions apply?

Do not infer a Method from one work record. When several grounded Work occurrences or heterogeneous sources may support a reusable Method, use A.3.1.MR; use RMP.10 only when a larger specialist reconstruction programme is needed. Process mining can help when an event log has defensible event, case, activity, object, and correlation choices. A frequent path is neither a norm nor a Method by itself, and logs usually omit embodied and tacit Work.

MDPE.18:3.3 - Build the source-to-claim table

Use a compact table:

Separate observation from interpretation. Preserve the source’s position: practitioner self-description, participant testimony, institutional statement, scholarly analysis, platform record, archive metadata, or later reconstruction. Corroboration can strengthen a claim; repeated copying of one source cannot.

Source age and currentness depend on the claim. An old recording can be primary evidence for an old occurrence. An old teaching manual may be historical evidence but poor guidance for current safety, preservation technology, or SoTA Method. When current practice or effectiveness matters, seek current enactment and direct practitioner evidence rather than relying on official adoption or publication count.

State the epistemic status: observed, source-attributed, corroborated, disputed, plausible expert estimate, or unknown. Large prevalence measurements are rarely affordable; a bounded expert estimate can guide a reversible decision when its observations and uncertainty are stated.

MDPE.18:3.4 - Compare lineage alternatives by the traits that matter

Do not force one genealogy over every subject. Ask which lineage dimension changes the decision:

• musical or movement material;
• bodily or instrumental technique;
• Method or teaching line;
• event, venue, platform, or participation form;
• name, institutionalization, or publication line; or
• population transmission and continuation.

Keep two or more alternatives only when sources support them and the difference matters. Useful alternatives include derivation from one line, mixture of several lines, independent convergence, deliberate branching, revival from records, or ecological evocation under similar constraints. A neat tree is a representation choice; test whether the relations are actually tree-like before using it.

If sources support only one bounded attribution and no serious rival, do not invent a second history to look balanced. State the supported claim and the unresolved gaps.

MDPE.18:3.5 - Expose what records cannot carry

Check the practice gaps relevant to the decision:

• embodied or instrumental capability;
• pressure, weight, touch, effort, sensation, timing, articulation, or correction;
• partner, ensemble, audience, venue, or equipment relations;
• operative constraints and situation-responsive choices;
• teacher feedback and learning context;
• software, model, prompt, data, or control configuration; and
• present holders, access, transmission opportunities, recognition, selection, and reproduction.

A source need not fill every gap. Say which gap blocks the decision and which can be tested by representative Work. Use MDPE.17 to test receiving enactment and MDPE.19 to test current continuation. Do not make those results from records alone.

MDPE.18:3.6 - Return decision-usable evidence

Return only the information needed by the receiving decision. The following prompts can help:

decision, user, subject, population, place, period, receiving use:
source-to-claim rows:
supported lineage relations by dimension:
live alternatives and why they matter:
embodied, performative, technical, and present-use gaps:
allowed decision uses:
blocked inferences:
useful continuation or stop:
source-change and evidence-change reopen conditions:

The result may be small. One qualified attribution, one usable MethodDescription, and one unresolved embodied gap can be enough. Select further inquiry or representative Work only when its attainable contribution warrants its burden for the receiving decision. The practitioner uses this evidence when choosing, authorizing, teaching, transmitting, restoring, retiring, or continuing the practice through the applicable direct Methods.

MDPE.18:4 - Worked Cases

MDPE.18:4.1 - Dance: a Tarraxo workshop attributes claims without inventing a complete genealogy

A festival workshop team must choose an attribution note and a small set of movement and partnering distinctions to trial. Current practitioner sources do not support a complete Tarraxo genealogy.

Angolan antecedents, predecessor relations, independent corroboration, and current receiving capability remain open. The workshop can publish the qualified note and test the selected Method. MDPE.17 becomes current only when receiving enactment or source contribution is the next question.

MDPE.18:4.2 - Music: an Algorave brief uses a pinned community source

An organizer must decide what an introductory workshop and event should preserve from the documented Algorave line while allowing local variation.

The evidence supports a qualified event brief. Performer capability, code–sound control, room and projection setup, audience relation, and actual event Work require direct Methods and later observations.

MDPE.18:4.3 - A human–AI Music project page is not a style lineage

The Serpentine page for The Call names artists, a songbook, singing exercises, a recording protocol, fifteen choirs, datasets, choral AI models, an installation, and a data-trust experiment. It supports claims about that project and those materials.

It does not supply one reusable Method for later choir–model Work, establish autonomous cultural memory in a model, or prove a durable style line, receiving capability, recognition, or continuation. A later project may cite the materials it actually uses. MDPE.6 governs changed-condition use; MDPE.17 governs receiving enactment and source contribution.

MDPE.18:4.4 - Record survival is not living continuation

Consider this constructed reconstruction project. A workshop team has a dated 2021 class recording with accompanying notation, and a 2025 school page listing Mo as a current teacher. The proposed programme note says that Mo has continuously transmitted Erin’s complete partnering Method since 2021. Before publishing it, the team compares the two source objects for that claim.

The continuous class passage shows Erin demonstrating a contact cue, Mo proposing a different cue, and the pair trying that revision. It supports a bounded event claim: this teaching relation changed during that recorded class. The current roster supports the school’s statement that Mo teaches there in 2025. It does not show what Mo taught during the intervening years, where the revised cue originated, or whether either teacher’s students acquired the whole Method. Treating the roster as a history of obtaining teaching relations would manufacture continuity.

A twenty-minute review of the relevant passage and the dated roster changes the decision. The team credits the 2021 demonstration and revision separately, labels its workshop as a reconstruction from those materials, and drops the claim of continuous complete transmission. No rival genealogy or formal event log is needed. The source agreement permits this attribution and internal study but not republication of identifiable class footage; the programme note therefore cites the agreed source description without reproducing the video.

The recording preserves the visible sequence and some cue timing; it does not settle the felt pressure or show a current holder reproducing the complete partner relation. That gap matters to teaching the reconstruction, so the team requests a representative demonstration with a willing current practitioner before choosing the exercise. Another historical interview about uninterrupted succession would not change the already sufficient bounded attribution. If the needed demonstration is unavailable, the workshop can examine the records but cannot promise instruction in an intact received Method. MDPE.17 tests receiving enactment when that becomes the question; MDPE.19 governs a proposed continuation or restoration decision.

A competent historian or practitioner may already have returned precisely these source limits and the supported attribution. Use that result directly. This pattern adds the integration only when the historical claim, embodied gap and next Music-or-Dance decision remain disconnected.

MDPE.18:5 - Recognition and Assurance

The evidence is usable when a cold reader can answer:

• Which decision and receiving use bound the inquiry?
• Which world-side subjects are at issue, and which sources merely describe them?
• For every relied-on claim, which source part supports it and what is the limit?
• Are testimony, institutional statements, scholarly analysis, platform traces, and present Work identified rather than blended?
• Which lineage dimension matters, and does the evidence support a tree, network, mixture, convergence, or only a local attribution?
• Which embodied, performative, technical, or present-use relations are missing from the records?
• Does source visibility differ from evidence of actual practice prevalence?
• Which use is supported now, and which inference is blocked? If further inquiry is selected, what decision can it change?

Assurance means replaying source-to-claim use, not counting citations. Check source identity, retained part, production context, permissions, corroboration, contradictory evidence, currentness for the claim, and the downstream use. When a mutable page changes, reopen only the claims and decisions that relied on it.

MDPE.18:6 - Common Failures and Repairs

MDPE.18:7 - Consequences

MDPE.18:8 - Rationale and Source Use

FPF supplies evidence discipline, cultural-evolution distinctions, archive and current-pool treatment, and common candidate-Method recovery. The Music-and-Dance specialization is the integration of audio, notation, video, bodily and partner evidence, instrument or software configuration, teaching lines, event practice, human–AI materials, and contested creator claims for one practical decision.

Case sources: Tarraxo Agency, Gwany and Liliana, TOCA Method, Blackwell et al. Live Coding: A User’s Manual, Algorave guidelines, Serpentine The Call, and Street Tango Concept. Mutable pages were checked 2026-08-25; their use remains limited to the claims stated above.

MDPE.18:9 - Relations

MDPE.18:End

MDPE.19 - Decide Whether a Music-or-Dance Variant Can Continue and What to Change

Status: Stable

Type: DPF pattern body

Primary working result: a qualified continuation account or decision. It names the Music-or-Dance subject, representative Work and horizon, the supporting arrangement, available evidence and limits, and the supported continuation, targeted change, restoration, local retirement, investigation or bounded-loss conclusion. A current dependence account or supported decision can finish without another test. A tested continuation decision additionally identifies the relevant change, representative Work actually observed, and failure, resilience or inconclusiveness. A post-change reproduction result and a tested causal contribution remain separate.

MDPE.19:0 - Use This When

Use this pattern when one successful performance, surviving record, famous name, or remaining expert is being treated as proof that a Music-or-Dance practice can continue.

The practical question is:

Can the named Music-or-Dance variant still be reproduced for the intended use when a credible performer, partner, teacher, instrument, venue, organizer, software, or context change occurs—and what should we change if it cannot?

Typical situations include:

• a dance school depends on one teacher-organizer and does not know whether another teacher can run the class and social practice;
• an ensemble can perform a work only with one specialist or rare instrument;
• an archive contains recordings and notes, but no current performer has reproduced the practice;
• a festival, competition, platform, or school keeps a style name visible while the Work that once reproduced it has changed or disappeared; and
• a robotic or AI Music project retains code and recordings while the hardware, runtime, calibration, operator capability, or performance Method can no longer be assembled.

The gain is not a label such as alive, viable, or lost. The gain is a usable account of what sustains reproduction, what dependence matters to the intended horizon, and whether continuation, a targeted change, inquiry or local retirement warrants its burden.

Use direct repertoire, teaching, rehearsal, preservation, reconstruction, instrument-maintenance, software-maintenance, event-production, community-stewardship, deprecation, or retirement Methods without this pattern when they already return the needed continuation decision. Use MDPE.19 when the project still confuses a record, one occurrence, one bearer, or one provider decision with continuation of a practice.

Use another pattern when the live difficulty is narrower:

• MDPE.18 for source-traceable memory and lineage evidence;
• MDPE.17 for receiving enactment and source contribution;
• MDPE.10 for developing performer capability;
• the applicable direct Method for carrying out and testing an already selected local change;
• MDPE.20 for several possible future cultural trajectories; or
• MDPE.5 for producing one performance occurrence.

MDPE.19:0.1 - Working Distinctions

Name the world-side subject before using continuation language. A variant in this pattern can be, for example, a performance Method, musical or movement material, a teaching Method, a performance configuration, an event form, or a recognition arrangement. These subjects can continue or fail independently.

Keep five distinctions visible:

Here Agent means a System with enough agency for the deciding or performing contribution in the case. Use System for an instrument, venue, platform, archive, software component, or other participant when agency is not established or is irrelevant.

MDPE.19:1 - Problem

Music and Dance practices are reproduced by arrangements of actual Work, Methods, performer and audience capabilities, bodies and instruments, teaching, organizers, venues, media, memory, recognition, and selection. These contributions can fail on different time scales.

A visible trace often hides that structure. A school publishes a class schedule, but only one teacher can make the partner practice work. An ensemble owns a score, but its instrument and performer cannot be replaced. A video preserves a choreography while timing, partner response, improvisation, and teaching knowledge have vanished. A platform reports many views while few practitioners can recognize or enact the style. Conversely, a practice can continue under a new label or medium and be wrongly declared lost.

The expensive error is to protect the visible trace while the reproduction arrangement collapses—or to fund a restoration project without finding the relation that actually prevents another representative occurrence. The project needs a bounded answer about reproduction, not a declaration about culture in general or a new experiment merely to complete that answer.

MDPE.19:2 - Forces

MDPE.19:3 - Solution

Select one continuation promise and describe the arrangement that makes representative Work possible. Use the available evidence to return a qualified account, supported continuation, targeted change or local stop. Select a new reproduction test only when its attainable contribution warrants its full design, performer, support, observation and displaced-Work burden. For a selected change, use its direct domain Method; a claimed tested replacement or renewed reproduction requires representative Work under the relevant condition. A later success does not establish the change’s causal contribution without the appropriate C.28 result.

The sections below distinguish current assessment, selected testing and change, and their returns. They are not compulsory stages after an adequate current result. The continuation arrangement itself is a structure of Systems and relations; observations, capability development and support changes may overlap or repeat.

MDPE.19:3.1 - Choose one continuation promise

State what must still be possible, for whom, where, and over what horizon. Include:

• the subject—for example, a partnered-improvisation Method, a rhythmic accompaniment practice, a work in active repertoire, or a robotic performance configuration;
• representative Work that matters to the intended use;
• the practitioner population, place, and period;
• the distinctions that must persist and the variations that remain acceptable; and
• one credible change under which reproduction matters.

Prefer a claim that can fail. “Keep Tarraxo alive” is too broad. A testable promise is: “during the next season, at least two teacher-organizer pairs can run a social Tarraxo practice in which dancers use the admitted timing, partner-response, and improvisation Method with varied partners and music, even when the present lead teacher is absent.”

If the project cannot name representative Work or continuity discriminators, return that gap to MDPE.1, MDPE.18, or the direct Music or Dance Method. Do not manufacture a reproduction test from a genre label.

MDPE.19:3.2 - Describe the current continuation arrangement

Recover only the contributors and relations that could change the promise. Useful questions include:

Do not call every item a carrier. State the relation: a teacher develops capability; a score describes material; a venue enables an event; a maintainer keeps an instrument usable; an organizer schedules Work; an audience or jury recognizes a difference; a performing Agent performs Work, and that Work enacts a Method.

Mark a continuation-critical relation when losing or changing it could defeat the stated promise. The first useful result can be as small as “the practice currently depends on one Agent who both teaches the Method and organizes the only recurring event; neither contribution has a tested replacement.”

MDPE.19:3.3 - Use present reproduction evidence

Use compatible observations of representative Work under current conditions. Arrange new Work only for a needed worthwhile and obtainable observation. For a claimed observed reproduction, identify:

• who performed and which Systems and relations formed the wider performing whole;
• the Method and material used;
• which continuity discriminators and allowed variations were observed;
• which support relations were needed; and
• what the occurrence establishes for the continuation promise.

One successful occurrence supports present enactment. It does not by itself support replacement capacity, transmission, population prevalence, or continuation over the whole horizon.

When no current reproduction can be attempted, keep the current dependence, uncertainty or local retirement conclusion if it answers the receiving question. Use MDPE.18 and direct historical, archival or reconstruction Methods only when the inquiry is attainable and its expected contribution warrants the whole inquiry burden. Record survival can support a restoration proposal, not a claim that reproduction already occurred.

MDPE.19:3.4 - Select a useful test of a relevant change

First ask whether uncertainty about a credible change affects the current decision and whether an obtainable test could distinguish the possibilities well enough to justify all its work, delay and cost. Available evidence can suffice for continuation under the supported conditions while replacement remains unknown. If a test is selected, choose a change relevant to the stated horizon. For example:

• another teacher, performer, partner, organizer, venue, instrument, controller, or software version;
• a delay before the next occurrence;
• different material, tempo, audience, partner, stage, or social setting;
• loss of one provider or support relation; or
• a different receiving population.

Do not remove a legitimate constituent merely to claim independence. If safe withdrawal is impossible or harmful, use a rehearsal, simulation, historical comparison, or other qualified evidence and state the weaker conclusion.

Varying context is especially important when literal repetition can conceal cue dependence. A performer who succeeds only with one teacher, one partner, one exercise order, or one room may have learned a narrow context-response relation rather than the capability needed by the continuation promise. MDPE.17 and Human Capability Development govern stronger transfer claims; this test only reveals whether the continuation decision needs them.

MDPE.19:3.5 - Change the selected relation and test the claimed reproduction

When a change is warranted, target the continuation-critical relation supported by the current account or a completed test. A supported fragile continuation or authorized local retirement need not first manufacture a failure experiment. Examples of targeted changes include:

When the task includes performing a selected intervention, a capable and authorized Agent uses the applicable direct teaching, coaching, rehearsal, preservation, maintenance, software, event-production, organization-change or retirement Method. The continuation decision neither grants permission nor establishes that the intervention occurred. A warranted proposal can finish before that Work; a claimed tested intervention cannot.

When the requested result is tested post-change reproduction, observe representative Work under the changed condition. A document, training event, software change, new assignment or maintenance action is not that result. If reproduction succeeds, report the Work and changed arrangement; if it fails or remains inconclusive, report that result. Claim that the intervention repaired or strengthened continuation only with a suitable C.28 basis. A bounded keep, reverse, revise or stop decision can use the weaker supported result without another trial or causal comparison.

MDPE.19:3.6 - Return the supported continuation account or decision

State the smallest conclusion supported by the available basis. Distinguish a qualified current account from a performed test:

A useful return fits in one paragraph:

The class-and-social practice currently depends on the lead teacher-organizer. In the absence trial one assistant supplied the needed correction, but neither assistant completed the event provision. The school will retain that corrector, prepare the other assistant for organizing Work over the next six sessions, and then try the combined arrangement with varied partners and music. The gap concerns provision in this arrangement; it does not require both assistants to become complete replacement teachers. Until representative reproduction succeeds, the school retains the qualified dependence claim.

Include the evidence limits, deciding Agent, authority, affected Agents, cost, and recheck condition when they change the decision. The decision is not the practice, the intervention Work, or the later cultural result.

MDPE.19:4 - Worked Cases

MDPE.19:4.1 - Partner Dance: reproduction returns after the support arrangement changes

This constructed example illustrates the limits of the continuation claim. A Tarraxo school advertises a class and holds many workshop videos, but one lead teacher chooses material, corrects partner response, recruits dancers, books the room, and runs the weekly social practice. The continuation promise is one partner-responsive class-and-social occurrence during the next term when the lead teacher is absent.

Two assistants first run a representative session with varied partners and music while the lead teacher observes without cueing. Both demonstrate figures, one can correct timing and partner response, and neither completes the organizing Work needed to start and sustain the social session. The missing relation is event provision. The available corrector already supports the teaching part of this promise; the observation does not establish a second failure merely because the other assistant cannot also correct. The class-and-social arrangement must supply the required contributions, not every capability in every participant.

Before choosing the change, the school compares three treatments for that same next-term absence. The following burdens are the local teacher’s planning estimates, not measured learning rates:

The comparison does not wait for a trial of every alternative. Existing capability evidence, available staff time and the agreed receiving use suffice to choose the targeted preparation; the promised post-change reproduction remains to be observed.

The school retains the capable assistant’s correction Work. Through its direct event-production and teaching Methods, it prepares the other assistant for room, communication, admission and session-running Work over six guided sessions. It tests their complementary arrangement rather than training two interchangeable teachers. They then run another representative class and social session without the lead teacher. The session occurs, the assistants correct the observed timing and partner-response failures, and the planned social Work continues with varied partners and music. The school keeps the arrangement for the next term within those staffing and support conditions. If organizing duties later take the corrector away from the needed partner corrections, or the corrector becomes unavailable, that observation reopens coverage: add a complementary provider, develop replacement capability or narrow the promise. A further absence test is selected only if it can change that decision at worthwhile burden; the present occurrence does not establish reproduction three months later.

The warranted conclusion is: representative reproduction succeeded after the support arrangement changed. Several changes occurred together and no comparison isolated their contributions. The school does not need that stronger claim for the reversible keep-and-monitor decision, so it records the causal contribution of each change as not tested. If the school later must choose which costly element to retain, it can use a C.28-governed comparison. Until then, “the co-teaching intervention repaired continuation” would be stronger than the obtained evidence.

MDPE.19:4.2 - Ensemble: the score survives, the active repertoire does not yet

An ensemble owns a score and recording, and one specialist can perform the work on a rare instrument. In this constructed case, current rehearsal, instrument, performer, permission and venue evidence support one scheduled concert. A replacement trial would displace needed preparation without changing that choice: the ensemble continues the concert arrangement and states its single-specialist dependence. That is a complete current decision, not a tested replacement. For a five-year active-repertoire promise the same basis is insufficient: maintenance, another performer, rehearsal access and organizer commitment have no tested replacements.

For that changed five-year question, suppose a qualified alternate performer, maintained instrument, rehearsal access, permission and preparation window make replacement testing both obtainable and worth its full burden. The ensemble tests an alternate performer with the maintained instrument and later a compatible substitute instrument. The first test exposes missing technique; the second changes timbre beyond the admitted continuity limit. The resulting decision can be to train the alternate performer and maintain the original instrument for two seasons while keeping the substitute as a distinct branch. These failed tests remain failed; a score-preservation project alone would not solve either failure.

MDPE.19:4.3 - Archive reconstruction: a new present variant without invented continuity

Film, notes, music, and testimony survive for a partner-dance practice, but no current pair has been observed performing representative Work that realizes its timing, partner response, improvisation, and social use. MDPE.18 supplies source-traceable evidence and visible gaps. A reconstruction team then uses direct movement-analysis, oral-history, rehearsal, teaching, and performance Methods to prepare a receiving trial.

If a pair performs representative Work, the project can claim a present reconstructed variant within the tested limits. It cannot infer uninterrupted transmission, historical identity beyond the evidence, population recognition or durable retention. Testing another pair and organizer after a delay becomes a separate useful inquiry only when the receiving continuation question needs that attainable contribution.

MDPE.19:4.4 - A school closes a class; the wider practice remains an open question

A school may stop offering a class because the teacher leaves, the venue closes, safety conditions change, or another programme has higher value. The school can decide about its own class and support. It cannot, from that decision alone, retire the style or declare it lost in the city.

If the wider question matters, observe the named practitioner population, Work, reproduction opportunities, place, and period with a suitable field Method. When no useful wider decision depends on the answer, stop at the local retirement result.

MDPE.19:4.5 - Stored AI Music code is not a reproducible performing whole

A repository contains model weights, code, musical material, configuration notes, and a recording. The result supports memory and possible reconstruction. It does not show that a current Agent and compatible hardware, runtime, interfaces, calibration, instruments, and support can perform representative Music Work.

A reconstruction test assembles the performing whole and attempts the named Work. Success establishes one present occurrence under that configuration. A later test after a software or hardware change can support a bounded continuation decision. Neither test establishes that a wider Music culture recognizes or retains the variant.

MDPE.19:5 - Recognition and Assurance

Recognize successful use when a practitioner can answer four questions without consulting project history:

1. What Music-or-Dance subject should remain reproducible, and in what representative Work?
2. Which actual relation currently makes reproduction possible?
3. What available basis and limits support the current account? If a change was tested, what failed, survived or remained inconclusive?
4. What continuation, targeted change, inquiry or local stop follows, and which stronger claims remain unsupported?

Assure the result with the following checks:

• the performing and deciding Agents are named as Agents only where agency matters;
• records and descriptions are not treated as performing Agents or living practice;
• the wider performing whole and its support are visible when their configuration changes the result;
• continuity discriminators and allowed variation prevent both identity-free drift and frozen purity;
• one occurrence, receiving enactment, recognition event, or local provider decision is not inflated into population-wide retention;
• a post-change reproduction claim includes repeated representative Work, not only completed training, documentation, software, maintenance, or organizational activity;
• a claim that the selected change repaired or strengthened continuation also has the C.28 causal-use result needed by the decision;
• retirement is limited to the arrangement within the deciding Agent’s authority;
• a loss claim names its population, place, period, observation basis, uncertainty and revision condition.

MDPE.19:6 - Common Failures and Repairs

MDPE.19:7 - Consequences

Positive consequences:

• preservation resources target performer capability, teaching, instrument, software, venue, organizer, recognition, or memory according to the observed failure;
• hidden dependence on one bearer or provider becomes visible before loss;
• reconstruction can create a useful present variant without fabricating an uninterrupted lineage;
• a living practice can change medium or name without being declared lost merely because its old trace disappeared;
• local retirement remains separate from cultural extinction; and
• evidence about actual practitioner Work is not displaced by official, academic, or media visibility.

Costs and limits:

• representative tests consume performer, venue, instrument, teaching, and observation capacity;
• some relations cannot be varied safely or ethically, so conclusions remain weaker;
• changing one continuation relation can move cost or burden to teachers, maintainers, organizers, source communities, or alternative practices; and
• no bounded project can guarantee future cultural retention. It can only improve or qualify the reproduction arrangement within its horizon and authority.

MDPE.19:8 - Rationale and Source Use

UNESCO’s intangible-cultural-heritage practice distinguishes documentation from continued recreation, transmission, community participation, and revitalization. This pattern uses that distinction without treating official listing or policy authority as evidence of actual practice.

Experimental cultural-evolution work distinguishes several transmission arrangements, learning opportunities, costs, redundancy, and information-loss mechanisms. It supports varying the relation relevant to a claim rather than assuming one universal transmission-chain test.

Singh and Hill report no evidence of dance, operationalized as movement intentionally synchronized to music, or infant-directed song among the Northern Aché during 122 months of fieldwork between November 1977 and January 2020. Infant-directed song is broader than lullabies. This bounded negative observation challenges universality of those behaviours under those criteria; it does not show absent biological capacity or absence of every activity that might be called Dance. Later introduction remains possible. Settlement-era loss and an earlier bottleneck are alternative historical explanations, not observed loss events or settled causes. The observation grants no authority for an outside restoration project.

Dance-interaction and reporting studies show why video or movement geometry alone can miss partner response, touch, timing, agency, feedback, teaching, and social setting. Direct Music and Dance Methods remain necessary for deciding which differences matter and for performing the test.

Refresh a source only when a newer result changes a test, intervention, evidence limit, or continuation decision. Publication status, official authority, and press attention do not substitute for actual Work in the named practice.

MDPE.19:9 - Relations

MDPE.19:End