Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.Download on the App Store
Audiobus is the app that makes the rest of your setup better.
Atom piano sequencer at audio rates
Has anyone played around with this? If you set Atom to loop 1/256 - 1/64 notes, and raise the tempo multiplier high enough (or tempo), it should be triggering whatever sound source it’s attached to at audio rates. Not all sound sources can keep up, I dont think. ReSlice works, until it crashed. BASSalicious works fantastic. DRC did (edit: not) seem to be able to retriggered to play at audio rates above a certain amount. Zeeon works, but you need to turn on retriggering on the oscillators. It’s basically making an oscillator out of whatever sound source you are triggering st audio rates.
I can post a video later, I’ve not seen this before. You can then alter the sound source for small shifts in the overall sound, and alter the speed of the sequencer to change pitch.