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.
adjusting volume of instruments in Garageband (IOS) drummer kits
I'd appreciate some help in understanding how to set volume levels for different sections in the "pick a drummer" option. So for example, I've selected Curtis. Suppose I want to boost the volume level of the cymbals. I unhighlight everything (e.g., snare, percussion) except the cymbals. I then drag the puck to the top of the square (loud). I unhighlight cymbals and highlight the snare to adjust its volume by dragging the puck into the lower half of the square. I next highlight the cymbals again so that both cymbals and snare are sounding. Problem- volume of the cymbals has been lowered to my last setting (for the snare). So it seems that the volume of each section can't be independently controlled. What am I missing?