RHY.9:4.5 - Retain the useful arrangement and its scope
Keep the allocation, cue meaning and access that answer the receiving task. Preserve the conditions that matter—such as sightline, tempo, preparation, equipment or a continuing support gesture.
A calculation can justify a trial; an observed local success can justify retaining that arrangement in comparable use. Wider reliability and transfer remain separate questions. Stop when the next performance decision is possible, or name the unavailable cue, action or capability that prevents it.
Reopen the affected allocation or cue relation when the passage, performer, channel, placement, tempo or preparation changes. Reuse the relations those changes leave intact.