Wow, at a glance, this appears to be the best auto-chord-transcribers I've used. I'm getting much more usable data out of this than others that I've tried.
Do you intend for it to be able to hear altered chords?... #5, b5, etc? It didn't seem to be catching that on a song I submitted, but it got the root and third correct, which is still helpful.
The detection is very sensitive to the harmonic definition of a song more than anything else. On some songs it will do a great job and on other miserably fail. That's why it's also an editor, nothing beats the human ear.
Do you intend for it to be able to hear altered chords?... #5, b5, etc? It didn't seem to be catching that on a song I submitted, but it got the root and third correct, which is still helpful.