RHY.3:4.5 - Carry the constraints into performance or practice
Explain what must remain, what may vary, and what warns that the combination has failed. The instruction can be short: “keep the underlying sound through the accent and leave the next sweep available.”
Treat a successful trial as evidence for its performed conditions. If the combination requires a missing coordination capability, develop that contribution and reintegrate it into the activity. A sequence of exercises does not by itself establish that the simultaneous contributions have become usable together.