I'm not sure about the Quartz audio thing. I just d/l'd it a few months ago so I could compare notes with another member here and it seemed to work ok, but I don't think I have it on disk or either computer any more.
Jazz + isn't only for Linux. The version I've used is Windows based. I kept the setup files on disk, because I still hack around with it every so often. It's basic but it will allow you to change midi track channels. Not sure about drum mappings, never tried it.
If you'd like, send me an email and I will send you the Windows version of Jazz+, or try again on this page:
http://www.jazzware.com/zope Here two others that might work. Costs nothing to try anyway:
http://www.anvilstudio.com/ http://www.frieve.com/english/ If none of these can help you with the drums, most of the commercial ones will, and there are entry level apps like Cakewalk Music Creator or Power Tracks that can be had for 30 - 40 USd or so.
Regards,
AJ