I remember a long time ago (ten+ years) that I had an electronic version of this (the planets), which was VERY good...
I since forgot who did it, anyone know? darw_n "create, demonstrate, toneshift..." http://www.mp3.com/stations/clevelandunderground http://www.mp3.com/darw_n http://www.sphereproductions.com/topic/Darwin.html http://www.mannequinodd.com
