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.
Loopy/AUM/AB3 - Great Looping Setup
For those that love AUM and want a multitrack looping setup, the combination of AUM, Loopy (and/or Loopy HD) and Audiobus 3 are a potent combination. While some people balk at a non-AU solution, this combination has a lot to offer and (especially if you are working with multiple co-ordinated loops and want to automatically move from recording one loop to the next) has some advantages over using AU solutions.
The following thread has step-by-step instructions:
- Loopy is one of the most stable and feature-rich apps out there.
- Up to 12 loops
- sophisticated (yet easy to set-up) MIDI control of all looping for those that want MIDI control
- easy access (via the AB3 palette) of the loop multiples
You can also do this with just AB3 and Loopy HD -- I mention AUM because it is a (deservedly) much loved environment into which this can be incorporated.