Re: I'm actually surprised that it works on raw samples at all
"I've not heared the output yet, but if it's anything like music, it would be very surprising."
The samples posted in the article actually do sound like music even though there are some jarring moments. However these are still approx 10-second clips, it might not be so pretty if extended to a few minutes, and even less so over the length of classical music pieces which typically can be anywhere from 20-100 minutes.
I think that moving from using MIDI encodings to raw WAV files is a step in the right direction but I suspect that something is still missing... it probably requires simulating how our ears encode vibrations into neural patterns (which is, after all, a sort of Analogue-to-digital converter)