I think it would be sick as fuck to have git for music production DAWs so musicians could release a bunch of histories of a track instead of just one. I want to hear it before that one thing clicks that really made the music work, little scraps of it coming together. And then i got to thinking about musicians being able to keep tinkering with music after its release, and you could still go back to an old version, but they could keep poking at it and riffing on it.