After watching the videos I also am not sure where you expect to use this on an Android device.
I have found few applications of any use on a Android phone to use with an external device other than a
I used MIDI last before General Midi was defined and later with non-standard Kurzweil modules.
I have similar questions using a current exotic Roland Go Keys with any app and external MIDI connection.
This keyboard generates 6 channels of separate parts with MIDI clock.
I have not found any apps other than basic rhythm or keyboard control to be of any real time use.
If you would use this as a keyboard then start by looking at this video from the Caustic apps author.
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