There have been programs purporting to that for some time. The polyphonic nature of most audio tracks has made most of them interesting "in theory."

http://www.music-notation.info/en/compmus/audio2midi.html

Melodyne (though expensive) seems to do a pretty good job with monophonic tracks. In my experience, music that doesn't swing, and has a regular pulse, tends to work best.

Last edited by PhillyJazz; 10/26/15 02:45 AM.

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