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.
Comments
Digging into the description of the app:
"IMPORTANT: This app is used just to redirect you to our new subscription based app. Please, search App Store for "Songsterr Tabs & Chords" and download that app instead."
Sorry for the annoyances.
Um, come again? Thanks for the post, but did you mean 99 cents, or 99 dollars? Songsterr appears to be a subscription-based service for tabs, so the price of the app is not the cost.
It does look very nice, and I use Ultimate Guitar Tab quite a bit (which was either free or a few bucks on phone, but I think is also subscription on iPad)
EDIT: You clarified before I finished my post. Thanks!