Twelve-string bass

The first known 12-string bass guitar, the "Hamer Quad," was designed by Jol Dantzig and built in 1977 for Tom Petersson by Hamer Guitars.

Petersson's Cheap Trick bandmate Rick Nielsen reports that Petersson first conceived of the instrument in 1973, and worked with Hamer over the next few years refining the design.

[1] Basses with 12 strings and different layouts have been built.

A bass with six two-string courses (bB-eE-aA-dD-gG-cC) was played by John Paul Jones of Led Zeppelin.

This article relating to bass guitars is a stub.