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.
New Bedhead Producer Tutorial,Using Reslice To Mangle/flip your loops
I go through the process exactly the same way when I'm creating new loops for my upcoming sample pack. This should really demystify how to use this killer app for some really cool sounding rhythmic loops/samples. This is just one way that I flip samples and I'll continue to show different ways in my next tutorial as well....basically how you can create many loops out of any loop.