Diki ...

Does ANYONE have a clue how the Audya is going to deal with this?

I do not know all the answers, but I can explain the key on how ketron currently sync's wav. files on the sd1.
The Key is naming a wav file, the same name as the midi file or style...For instance, I have a santana midi file, named "santa"..
I also have a wav file on the hard drive called "santa". When I call up the midi file, the wav file attaches to the midi file.

So we have a midi file playing from one master folder and a wav file streaming from a different folder at the same time. The wav file will respond to transposition or tempo change, without losing musical integrity.

Use midi as a map to manipulate multiple audio loops at the same time ='s AUDYA.
At least that's my understanding.

Dan O'