RHY.11:4 - Solution
RHY.11:4.1 - Recover what must obtain together
Identify the overlapping contributions and their bearers: for example a vocal phrase, a reference gesture, an instrumental pattern, a continuous body movement and a partner cue. Retain each contribution’s required order, duration, grouping, accent or continuous course.
Include entry and the following action. A combination that works only until the last accent can still defeat the passage. Use sufficient RHY.2 descriptions and RHY.5 representations rather than reconstruct them.
Ask which differences are essential. The voice may cross gesture boundaries; the movement may continue through silence. Those relations define what the combined performance must preserve.
RHY.11:4.2 - Find the relations that make joint timing recoverable
Locate the relevant shared landmarks, intended displacements and intervals. For commensurate periodic parts, a common subdivision can make coincidence and alternation visible. Retain each part’s own grouping on that subdivision.
Use a few shared arrival points or demonstrated relations when a fine count is unnecessary or obstructive. For continuous contributions, relate identifiable portions of the course—such as a rise, turn or release—to the other part without reducing the whole course to those markers.
Do not force a common repeating grid on material that lacks one. A free phrase can relate to a sustained movement through a particular entrance or release; the interior relation may remain deliberately flexible. State the relationship the performance actually needs.
RHY.11:4.3 - Check simultaneous demands, not just separate schedules
Map the required actions onto the body parts, performers or mechanisms that produce them. Compare overlapping preparation, recovery, attention and cue use. RHY.9 repairs the allocation or access when a contribution has nowhere to occur.
Distinguish rhythmic layers from the methods that make them possible. Keeping balance, maintaining contact, articulating a phrase and performing the larger figure can occur together through constituent and encompassing methods. They are not automatically four separate rhythm lines. Conversely, two instrument parts can be parallel rhythmic layers without either method being part of the other.
If an individual can recall the figure and produce its components but loses a needed coordination in combination, locate that joint demand before adding repetition. RHY.12 addresses the missing capability at the relevant level.
RHY.11:4.4 - Establish the joint relation and restore complexity selectively
Use a familiar feasible means to make the wanted relation perceptible and executable. Options include a demonstrated composite, an external reference, separately allocated parts, slower compatible performance, or a simplified articulation that preserves the essential cross-layer relation.
Try the parts together. Then restore the omitted contribution whose addition matters next. Keep the common landmarks and each part’s own organization. If one part begins copying the other’s accent or tempo, return to the specific relation that was lost rather than restart unrelated learning.
Choose changes compatible with the actual technique. A slower tempo can alter balance, gesture, phrasing or control demands; success there supports only the corresponding conditions. Do not infer full-tempo capability from the diagram or slower construction.
RHY.11:4.5 - Keep the combination that serves the passage
Judge the contributions together, their required relationship and the continuation. Where a combination fails, distinguish a wrong relationship, an incompatible allocation and an unavailable execution capability. They call for different repairs.
Retain a successful local combination, a proposal whose constraints are satisfied but execution remains to be tried, or the particular missing contribution. Separate practice remains useful input; it is not the joint result.
Stop with the answer needed by the next performance or development choice. Reopen the affected cross-layer relation when a part, allocation, tempo, cue, grouping, performer or continuation changes; preserve sufficient unaffected work.