talking of free jazz, are you aware of these guys?
Their albums are free, unless you donate, and the latest one is HD.
All 3 are under 21 I believe:
[video]http://www.youtube.com/watch?v=6_Bdflm7YHo&feature=relmfu[/video]
[video]http://www.youtube.com/watch?v=prINrOEerF0&feature=related[/video]
[video]http://www.youtube.com/watch?v=vg0Ozh46mak&feature=relmfu[/video]
[video]http://www.youtube.com/watch?v=91v84BpXqXA&feature=relmfu[/video]
and some good collaborations for a little less jazz:
[video]http://www.youtube.com/watch?v=DBYZIMIhdd0&feature=relmfu[/video]
with links to their web site on that you tube page.