MDPE.12:2.4 - Choose a representation that preserves the needed structure
Representations support different operations and hide different relations:
| Representation | Useful for | Frequent blind spot |
|---|---|---|
| audio or acoustic features | timing, pitch, timbre, onset, balance, alignment | movement, effort, partner relation, experienced meaning |
| video or movement coding | path, geometry, visible articulation, coordination | pressure, proprioception, attention, some contact and effort |
| motion or force sensing | kinematics, contact, force, timing, repeatability | artistic interpretation without an argued bridge |
| notation, choreography description, or code | declared structure and version comparison | what performers enacted and participants encountered |
| interview, report, rating, or commentary | experienced meaning, control, judgement, recognition, reasons | recall, framing, demand, competence, and population limits |
| corpus, event record, platform count, or archive | availability, distribution, recurrence, and lineage clues | actual use, recognition, selection, value, and undocumented practice |
A rhythm is not its notation, onset list, interval vector, or geometric diagram. Those are representations of selected rhythmic structure. Use inter-onset intervals when the relevant event has a suitable onset and the operation needs intervals; they do not by definition capture brush continuity, weight arrival, partner-readable pressure, or every other rhythmic carrier.
State the performer configuration, task, venue or medium, comparator, population, period, and access condition whenever changing one could change the observation.