Commodore 64 bass guitar – Breaking News & Latest Updates 2026
Skip to main content

Commodore 64 transformed into hybrid bass keytar

Jeri Ellsworth has cross-bred a Commodore 64 with a bass guitar to create a power-hungry hybrid instrument.

Jeri Ellsworth has cross-bred a Commodore 64 with a bass guitar to create a power-hungry hybrid instrument.

Commodore 64 guitar
Commodore 64 guitar
Commodore 64 guitar

The Commodore 64 has long been a staple of the chiptune and circuit bending scenes, but it’s not often that you see the old computer converted into a fully-fledged musical instrument. That’s exactly what enthusiast Jeri Ellsworth has done, splicing a C64’s body on to the neck of a bass guitar, allowing her to control the sound through the on-board Sound Interface Device (SID) chip.

As Ellsworth explains in the video below, the mutant device uses piezo pickups to capture the vibrations from the strings, amplifying and low-pass filtering them before sending them to the SID. The result is a retro sound familiar to anyone who’s used a C64. The only catch is the power consumption — Ellsworth’s creation uses a grand total of 18 AA batteries, and she admits that it only lasted eight hours on its first real outing at Maker Faire.

Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.