Aha! I remember Holovaty using a very cool interface (now part of soundslice) showing up the parts and chords of a song on his talk at Pycon earlier this year.

Aha! I remember Holovaty using a very cool interface (now part of soundslice) showing up the parts and chords of a song on his talk at Pycon earlier this year. It's good to see that it became this really cool project.