sources

debian

deb-src http://ftp.debian.org/debian sid main contrib non-free

ubuntu

intrepid

cinelerra

deb http://akirad.cinelerra.org/ akirad-intrepid main

medibuntu

 deb http://packages.medibuntu.org/ intrepid free non-free

supercollider

deb http://ppa.launchpad.net/artfwo/ppa/ubuntu intrepid main

karmic

ppa:falk-t-j/music

http://ubuntuforums.org/showthread.php?t=1350304