RHY.9:5 - Archetypal Grounding
RHY.9:5.1 - A timely command whose cue arrives too late
In a constructed stage controller, a receiver must make an event at 2.00 seconds. A cue identifies that future target time. The supplied bounds are 0.05 seconds for cue delivery and 0.40 seconds for preparation; after preparation the receiver can wait until the target.
Sending the cue at 1.65 gives latest readiness at 2.10. Sending it at 1.50 gives latest readiness at 1.95, leaving 0.05 seconds before the target. Choose the earlier cue for a trial under those bounds. The intended event time stays 2.00.
The calculation concerns advance information and readiness. It does not establish audience-perceived timing or the bounds’ validity for another mechanism. If the delivery delay is unresolved enough to cross the available margin, return that uncertainty or choose an arrangement with sufficient known margin.
RHY.9:5.2 - Preserve the sound while changing cue access
A constructed ensemble passage requires a player to sustain an already learned brush motion while making an accent with the other hand. The partner needs a visible preparation cue before entering. Suppose a short rehearsal establishes the following:
| Arrangement | Sustained motion retained | Partner enters without an added pause | Following action retained |
|---|---|---|---|
| Use the occupied hand to point | No | Yes | No |
| Keep the playing actions, leave the cue obscured | Yes | No | Yes |
| Keep the playing actions and expose an existing preparatory cue by changing the partner’s position | Yes | Yes | Yes |
Retain the third arrangement for these conditions. No new gesture technique is needed. If the performance position cannot change, the same result becomes a concrete need for another accessible cue, not evidence that the partner should simply try harder.
RHY.9:5.3 - A beat gesture preserves reference but not sound duration
A learner recites an onset-syllable pattern while a teacher shows every beat. The teacher’s gesture can keep the reference available through an unspoken position. Whether the earlier sound continues or a rest occurs still needs the duration-bearing score, demonstration or agreed instruction.
RHY.5 chooses that representation and RHY.6 checks the correspondence. The cue arrangement retains the teacher’s gesture for reference and the demonstrated duration for realization. With either removed, only the conclusions dependent on it need reconsideration.