Reading this thread asking for the same (appart of myself by PM): http://eab.abime.net/showthread.php?t=51402
it seems that it could use also camd. http://aminet.net/package/mus/edit/camd
But unless any of us will give him a Roland MT32 as a gift, I doubt he will make anything Midi related. We should
Edit: Why it doesn't exist an AmigaBounty site for OS3.x?