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.
Irig Keys 2- nice!
Like many of you, I’ve tried lots of midi key boards, some good others not. I’ve been looking for a mini midi keyboard for quite a while that has pitch and mod wheels (not touch strips) and just a few knobs for midi routing. I gotta say IK did a very nice job with there new keyboard. The wheels and knobs feel good, keys are decent (for a mini) velocity sensitive, and a much improved build quality. All in all, its a solid product with features I found difficult to find on such a sized keyboard.
To note I thought the earlier irig keys was crap.