From the MAKE Flickr pool
The Swooftronic SB instrument creates some sweet signals courtesy of light-controlled filter & frequency. The demo gets particularly interesting @ about the 2 minute mark. – SwooftronicSB5 on Flickr
From the pages of MAKE The MoofTronic Mini Synth – MAKE: 15: Music, Page 70 Subscribers–read this article now in your digital edition!