I saw at main pages your are working on scratching audio.
I would like share some ideas to you:
Real-time audio buffer scratching from midi (cc or sysex) and osc/cmtp
Real-time looping from scratching audio (resampling)
Real-time Global Scratching with full composition
Midi sync and midi clock output from global audio analisys.
Separate Volume controls for each layer.
It seems Ableton Live but I hope you could do better.
I know how to do else, do you need some help?