Make sure every such Sus Sustain command is sent at a new
segment/granule/subcycle of the audio loop, avoiding the substitutions
to happen at the same point of the audio loop.
Should there be a pattern to the substitutions? Does it need to be random or evenly distributed around the loop?
I can think of a way of making it evolve from the center, then center -1, center +1, center -2, center +2 and so on. Would that work?