I stole some recordings of virtuoso violinist Maja Cerar and went berserk with DSP fun:
(each about 5 mins long)
Much max/msp-ing involved, of course. :-)
Hope you enjoy them!
PS: I hope people don't mind when I post links to music here. I know it's (pun perhaps intended) "blowing your own horn", but I personally like when other people post what the sounds they're making. If this is really inappropriate, I'll stop.