Bildheinzer built this Video Circuit Bending Glitchbox, the “BGB-03” to control analog video with music –

Video Manipulation Unti reacting to incoming audio.The RGB colours are split and sent through 3 Effect ways which react to bass,mids or heights….you can choose by the patch cables which colours goes which way..
S-Video in/out
RCA in/out

Once the Glitchbox is calibrated to each signal, the visual effects are quite strong and surprisingly pretty. And this one’s not alone – Bildheinzer has produced quite a few glitch-strumentation consoles.

Related:

MAKE Interview: DIY video mixers and more with Karl Klomp