Anthony Braxton jamming some Coltrane. Totally ecstatic towards the end.
http://www.youtube.com/watch?v=0o0AYFRFX7g
Derek Bailey doing some cool stuff.
http://www.youtube.com/watch?v=9XE2N4mxeRw
Sun Ra. Now THAT'S how you play a hammond organ.
http://www.youtube.com/watch?v=3SsBtfuSDxw
Ornette Coleman playing w/ James "Blood" Ulmer et al. Starts out melodic enough but quickly descends into dissonance. Real tasty.
http://www.youtube.com/watch?v=na_3r_bf5gA
Enjoy!