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.
Modal - strange UI behaviour in AB3
I just loaded Burns Audio Modal as instrument in AB3, and when in play, the display continuously switches between Modal's interface (in AB3) and the audio page, or mixer or midi page depending on which is selected prior to playback. I tested Spectrum and this doesn't happen. Hasn't happened with other instrument apps I've loaded in this setup - Araillo , Tardigrain and Factory.
I've got three instruments loaded in AB3, each on a separate midi channel, transport and midi coming from an external midi device.
It makes Modal unusable in this set up. Big shame. Has anyone else experienced this? Bug? OTOH I'm new to using AB (with midi receive IAP) driven by midi hardware, and audio into AUM. Maybe I'm overlooking something, but I can't see any midi messages that would make display switch!