I assume there are some musician types in here..even if not, you'd probably have a lot of fun with this:
http://lab.andre-michelle.com/tonematrix
I recorded a couple tracks (solids/solids two) with it and uploaded em here if anyones interested:
http://destroyermaker.dmusic.com/
You could share yours too of course. :)
So much fun!

Thanks man, this is awesome. I'm hooked already.

I know, I was at it for hours. :)