I’m hoping it would be automated by Songbird too. You would set a preference for how to find it, as in: if the URL location fails, then go to skreemr, then pull a 30 second sample from last.fm, etc.
It’s especially too much work for the recipient when you compare it to the highwater mark: mixtapes.
But I think it would be great if there were a process where bands that want to host their own mp3s can see who is listening to them and where.