overtone/overtone — comment on commit 063996cfaad9441b479f793ba1b57ea4d93e75b5
File:  line 0
By daveray:

This works for me, or at least displays a piano roll. Doesn't look like there's any code to play it yet. The Seesaw dep in project.clj was wrong. I fixed that so maybe that will get it working for you?