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.
Arturia beat step pro as master clock for midi sync
Just to let you know, but my first tests are WAY much better, stable, and usable using the Arturia beat step pro as master midi clock.
My setup :
-soundcard Iconnect Audio4
-BeatMaker 2 slave
-External synth Elektron Analog Keys slave
All is running well at the moment, I can change the tempo live, Loopy timestretching quite fast...Always in sync as far as I've tested...
Can't wait for the next Ipad Air 3 and the new app Masterpiece to add app effects and other app synths !!!