Quote Originally Posted by dflat View Post
Yes it is possible to use either inter-app audio or AudioBus app.
I can only check on iPad at the moment (presumably it is the same on iPhone). I can see the option of Inter-app audio within the Instrument choices, then choose iReal Pro in the Instruments tab. Set the + song section recording length to automatic; Tap the record button then switch to iReal Pro and tap Play.
Tried it but can't get it to work. I start Garageband then click ireal pro from the inter-app. I then start Garageband recording and switch to Ireal Pro and tap play. Nothing happens.