How to connect the guitar (bass) to the iPhone to practice with the iRealBook player?

[Lawrencedb]

I figured out how to hear an iReal b chart play in the background while I jam with guitar --> irig--iPad. But I can can only get the audio from both apps when GarageBand ison the screen and iRealb is playing in the background. I want to do the opposite-- see (and hear)the chart in iReal b but still hear my guitar ( from GarageBand) at the same time. Doesn't work. Should it? Or do I need to use amplitube app for that ? Thanks!

[Niki]

I figured out how to hear an iReal b chart play in the background while I jam with guitar --> irig--iPad. But I can can only get the audio from both apps when GarageBand ison the screen and iRealb is playing in the background. I want to do the opposite-- see (and hear)the chart in iReal b but still hear my guitar ( from GarageBand) at the same time. Doesn't work. Should it? Or do I need to use amplitube app for that ? Thanks!

We haven't tested with GarageBand, but it would definitely work with the AmpliTube app.