related thread:
http://talk.maemo.org/showthread.php...t=Synaesthesia

graphics visualizers have a long history and tradition .
best experience I remember were from the amiga scene where the ".mod" popularity really helped to mix up and sync graphics and music (the mods are sequence of event of playing a specific short sample and that made them perfect for visualizing specific graphic effect linked to a specific sound). Winamp broaded the 'genre' and the xbox360 'builtin' visualizer gave a bit of money to Jeff Minter (since the thread look a bit 'old school' Jeff Minter is that genius behind llamasoft http://www.llamasoft.co.uk