Baring souls with insane music
Ableton + Processing Visuals
Processing synced to Ableton Live for real time generated visuals.
This briefly was my setup at Xorko festival in Arminou.
Today I will show you how to make super-awesome-real-time-rendered-visuals to accompany your controllerism set!
Of course there are many many many ways to do this, some may be easier ( take a look at vvvv or max msp with jitter) but we will be looking at Processing, which requires some very basic Java programming. But the same principles can be applied everywhere.
Article: http://www.controllerism.com/controllerism-how-to-interactive-visuals-with-processing