I recall reading about something like this but I'm not sure if I understood exactly how it worked or if it would work for this application but it's worth a shot:
I have some recordings of loops I made that are pretty layered. They aren't like ambient pad layers with lots of sustained noted over each other, it's random notes being punched into my Dl-4 to make this kind of texture. I have no idea what I was doing playing wise and it is kind of difficult to decipher by ear.
Is there some software that can pick out the notes and midi map then so I can kind of get an idea what the notes are?