Start Here...
Miles Davis - http://www.milesdavis.com/
Ornette Coleman - http://harmolodic.com/
Jimi Hendrix - http://www.jimi-hendrix.com/
Charles Mingus - http://www.mingusmingusmingus.com/
Fela Kuti - http://en.wikipedia.org/wiki/Fela_Kuti
Parliament-Funkadelic - http://www.duke.edu/~tmc/pfunk.html
George Clinton - http://www.georgeclinton.com/
Jaco Pastorius - http://www.jacopastorius.com/
Stanley Clarke - http://www.stanleyclarke.com/
Henry Threadgill - http://en.wikipedia.org/wiki/Henry_Threadgill
Art Ensemble Of Chicago - http://www.artensembleofchicago.com/