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 StoreAudiobus is the app that makes the rest of your setup better.
Selling: Korg Microkey Air 25 ; Launchpad RGB/MK2
Time to get rid of some impulse bought gear that doesn't jive with my rig.
Korg microkey air 25 - $50
Launchpad RGB (Launchpad MK2) with Novation soft case - $75
USA only - we can work out shipping