Hardware hacker Jeri Ellsworth turned a Commodore 64 into a working synth bass guitar using the SID chip and an FPGA, and it's hooked up to a wearable synth.

What's more, she operated the whole setup at the Bay Area Maker Faire while wearing rolling skates.

And, as if you're not already impressed enough, Ellsworth's day job is working on top-secret projects at Valve Software. She's truly a geek to be reckoned with!

Check out some more details on the keytar's construction in a video interview with MAKE.

[waxy.]