Project M: http://projectmgame.com/en/ http://projectmgame.com/en/ and VSXu : http://www.vsxu.com/ http://www.vsxu.com/ are two very popular music visualizers

Project M: http://projectmgame.com/en/ http://projectmgame.com/en/ and VSXu : http://www.vsxu.com/ http://www.vsxu.com/ are two very popular music visualizers on linux. VSXu is more than just a visualizer though. It is a very powerful Visual Programming Language, which is mostly used to create music visuals. You can feed it audio using pulseaudio, so it can work with any audio source in most modern linux distros. You can even compile VLC with support for VSXu. I wrote a basic VSXu plugin for both Amarok and Tomahawk media players but had to put them on a pause because of the bad state of Phonon Backends back then. Feel free to resurrect them :) Someone integrated VSXu into XBMC too.. https://github.com/mifi/xbmc-vsxu https://github.com/mifi/xbmc-vsxu