[youtube]http://www.youtube.com/watch?v=9uigPZ5zwMI&feature=player_embedded[/youtube]
This is MSSIAH CTRL – a custom DIY hardware control mod for the Mssiah synth.
If you’re not familiar with MSSIAH it is a cartridge for the Commodore 64 that turns the 64 into a MIDI synth module.
via Synthtopia.