Jeri Ellsworth, who now works for Valve Software, showed off her Commodore 64 Keytar at Maker Faire Bay Area. She isn’t just using the Commodore as a cool case for her bass guitar, she is actually tapping into the internal sound processor of the Commodore 64. She even has the keyboard working as a synthesizer.
Did I mention she played the keytar on roller skates? My vote for best project at the 2012 Maker Faire Bay Area.