Re: I get this completely
"A midi file simply won't contain all this detail, but by programming an AI with raw audio sounds. There is an opportunity for this parts to be learned."
I agree, but I'm not thinking about MIDI (at least not in the play-by-numbers sense). What I mean is - and I say this as a semi-professional pianist - that it must surely be easier to teach AI to play something like a piano like a musician by reading and understanding actual music than it is to try and filter out the useful bits from the huge pile of data that is the raw audio stream of a performance. Even what seems like the difficult stuff, for instance interpretation, is something that most musicians have to learn: when I was nine, I didn't know any of this and just plonked everything out at the same volume, but I learned over time what sounded better.