aSid is a program which runs on your Commodore 64, and turns it into a moog-like monophonic synthesizer. Connect paddles to your commodore 64 and use each paddle to control a different parameter. The synthesizer is played by using the lower two rows of commodore keys like piano keys. You can also run sounds into your C64 using the A/V in port and the filters will affect the sound as it passes through the machine. Sounds great on fat bassy speakers! aSid is Free Software and is licensed to you under the terms of the GNU Public License.

Other keys control synthesis parameters: