Send live audio or MIDI from one Audiobus-compatible app or Audio Unit to another: add effects on top of your favourite synth, use your favourite step sequencer to drive the whole lot, and record it all in your favourite DAW, sampler or looper. Plug in a MIDI keyboard, run it through an arpeggiator or a key quantizer, and record the result in your DAW, or drive several different sound generators with a keyboard splitter. And control it all with a MIDI controller. The possibilities are endless.
Introducing MIDI Learn! Control every aspect of your Audiobus session from a MIDI controller: Load presets, adjust levels, start and stop or adjust the tempo, switch apps, interact with Connection Panel buttons, adjust Audio Unit parameters and switch Audio Unit Presets, and more.
With the Audiobus MIDI Learn In-App Purchase, aside from supporting Audiobus’ development, you will gain powers untold. Look ma, no hands!
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Then save your setup in a preset to be restored with one touch later on.
With a completely new MIDI routing system, support for Apple’s new Audio Unit Extensions standard, a new built-in mixer, MIDI learn, and huge new workflow improvements, Audiobus 3 represents a big step forward for mobile music making.
More info here https://audiob.us/

Mixer Apps