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.
AUM transport stop/pause expected behavior
MIDI files played by Helium or MIDI Tape Recorder leave stuck notes if you press Pause in the AUM Transport.
I've tested and played the same MIDI file loaded in Xequence, Helium (AU), and MIDI Tape Recorder (AU). Pressing Pause on the AUM transport reacts differently.
Xequence stops the note.
Helium hangs the note.
MIDI Tape Recorder hangs the note.
Xequence sends an All Notes Off.
Helium and MIDI Tape Recorder do not.