I've used it before, it's pretty interesting, especially for its visualisations of the chords being played. It works better for songs with a clear chord structure, though. Too bad the project seems kind of dead. There are other projects listed elsewhere in this discussion (e.g. Chordino+NNLS Chroma) which seem viable.
Tangentially, Melodyne's "Direct Note Access" promotional video was very exciting when I saw it years ago, but I have to wonder how well it ever worked (when it finally came out).
I've used Direct Note Access several years ago (soon after it was released), and it's really good. Like creepy good. I put some full-band bluegrass tunes through it and it pretty much caught every note. It doesn't attempt to separate out instruments, so the output was just one MIDI track, but I could easily go in and separate out bass notes, mandolin solos, etc.
It had trouble with most pop and rock music, presumably because of the crushed dynamics and drums. Of course, it's not even designed for analyzing multi-instrument recordings.
I've used it before, it's pretty interesting, especially for its visualisations of the chords being played. It works better for songs with a clear chord structure, though. Too bad the project seems kind of dead. There are other projects listed elsewhere in this discussion (e.g. Chordino+NNLS Chroma) which seem viable.
Tangentially, Melodyne's "Direct Note Access" promotional video was very exciting when I saw it years ago, but I have to wonder how well it ever worked (when it finally came out).