Review my startup - Chords!
10ren: Does it really infer them using DSP from the mp3 - or does it look them up? If the former - that's very cool, though I wonder about the accuracy. It would be good to have way to try it out online.Making it a webapp would make it much easier to trial, it wouldn't be narrowed to one app (winamp) - and piracy goes away. On the downside, you'd doing all that DSP on the server instead of spread over the clients.