I was poking around for code that plays audio from SwiftUI and bumped into your repo. Interesting! I'm fairly new to SwiftUI and iOS in general. My objective is to play musical fragments in a looping fashion, where the fragments end up collectively sounding as a polyrhythm, given the loops overlap during playback. I'm struggling to construct a framework where I can sequence the audio loops (quite long) while firing additional loops at very precise intervals during the playback of a given loop such that the rhythm is precisely preserved, thus generating a complex polyrhythm because of the different time signatures of individual loop elements.

This sort of arrangement would permit me to have a seemingly "infinite" song with just 7 longish loop elements. I need to control the number of times a given loop fires while getting a notification of when a given loop cycle ends so I can fire, without any delay, a new loop element. If you're familiar with Steve Reich, this sort of arrangement of loop playback simulates his composition style. I'm unlikely to have more than 5 concurrent loops playing at any one time. I would need to be able to recycle a given player to play a new loop element. Given your familiarity with timing and buffering, I suspect you know the best approach.

I'm struggling to resolve which iOS API to use. Any suggestions?