I have been reading Peter Ind's book on Tristano, it is a nice read and he is great player. He really lays down some heavy quarter note lines and great solos on Tristano's "Manhattan Studio". A lot of his work is on emusic:
http://www.emusic.com/artist/Peter-I.../12108104.html
His recent duo with Rufus Reid is outstanding:
http://www.emusic.com/album/Peter-In.../11318218.html
I have had his solo LP "Improvisation" for many years, it has some great playing as well some interesting experiments with over-dubbing and tape speeds.
Another great LP to track down is the fantastic duo with Sal Mosca
He is a really interesting and innovative player. He seems to be still active at 80 years old:
http://www.myspace.com/peterind