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.
OT - Lessons from the greats! - a YouTube playlist
I put together some of my favorite lessons from great musicians I admire. Most of these were VHS instructional tapes back in the day and aren't available any more. Not only do they give you a glimpse into the times, the information within is still gold. Let me know if there are others you think I should add, and I hope you guys get as much out of this as I have.