It's my first post on arduino forums :) I wanted to share with you my recent experiment integrating arduino, processing and supercollider.
Take a look: ( link in following post since I'm nit allowed to post links in the first post :/ )
Circut consists of 2x 4051 analog muliplexers and 10 photoresistors. Input values are pushed to Processing via serial communication. Processing is then responsible for generating visuals and sending commands to SuperCollider (sound synthesis environment) server via osc protocol.