Heh, this is pretty entertaining, I'll have to try the scores on IMSLP:<p><a href="http://imslp.org/wiki/Musikalisches_Opfer,_BWV_1079_%28Bach,_Johann_Sebastian%29" rel="nofollow">http://imslp.org/wiki/Musikalisches_Opfer,_BWV_1079_%28Bach,...</a><p>(also it's doable on a 37 key MIDI controller so very accessible