Matthew Shipp String Trio bootleg here:
http://bigozine2.com/archive/ARrarit...Rmattsnyc.html
The show is back from 2000 and concludes with a take on "Summertime." If you don't know Shipp, he's an incredible piano player. Highly recommended is the disc that his Quartet made with DJ Spooky for Thirsty Ear. That record is called OPTOMETRY and comes very, very, very highly recommended by yrs truly.