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.
App for quickly making primarily loop-based electronica songs with lots of factory loops included?
I've just (again) tried using GarageBand on iPad for this because of the included Apple Loops which are admittedly very good, however, the user interface is just so extremely strange and slow that I already killed 3 neighbours and pets in the first 5 minutes of trying.
So, can anyone recommend a simple, efficient "music making app" with a linear sequencer which includes lots of factory loops (drums, melodies, pads etc.), ideally with seamlessly changeable tempo and key? I don't need any kind of AU hosting or connectivity to other apps if the included loops and effects "cut it". (Full disclosure: it's for making a few simple background tracks for a game.)