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.
What would make me like Tera synth more
I like Tera synth a lot. In theory. In practice, however, there's a few irritations. Getting the first one out of the way - the irritation of having exactly the same patch load up each time it is started up, and moving on to the main irritation. It isn't really real time. There's two levels of control tweakery, the first is to simply nudge the pots and sliders about, as you see them. The second level is where you select an input switch at which point you see a smaller panel overlay what was there and you're presented with an extract of whatever that source module is. Except, the keyboard is dead and nothing you do with the sliders and controls in that view will actually make a sound difference until you are no longer looking at that extracted view and are back to the full panel view. This alone (well, and the startup patch) make it a synth I'd like to use more, but find that I hardly ever do.
I wonder what it would take to make it fully real-time?
By the way, anyone with Tera synth, have you explored the percussion department in it?