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.
Trouble starting several AU instances
I have some problems with my ipad pro 2017...impossible to start more than two instances of several AU fx...It is very strange and most probably it comes from my IPad but I would like to know if anyone is facing the same problem and if maybe there is a setting, something Ican turn off, etc to stop this...
For exemple, I have all Audiodamage's app (that are just fantastic!), but impossible to start more than two instances of QuatroMod in AUM. SAme problem for all their other app. Same behaviour for the apps of Klevgrand...but no prblem at all with the apps of Flora Creative...All these apps are amazing and I really don't want to fingerpoint anyone...but help please !