Jinx wrote: > You might also Google for "music organ" to find filter circuits that > split audio according to frequency (bass, middle, treble) for more > variation If this is what I think it is, you probably get more results googling for "light organ". Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist