[gavanwoolery]

This is really great work. :) On a slightly tangential note, I understand why they chose an audio representation over symbolic, but I think that training the latter is more useful (commercially speaking). Would love to be able to get a track rolling quickly just selecting an instrument set and tweaking some AI parameters and then hand-tune it from there (yes, this greatly detracts from the "art" of it but sometimes I just want to see results quickly). Of course, to do this effectively, you would also have to analyze on an audio level (at least per instrument) so that the usage and timing of instruments could be better understood.