Twelve-string Bass
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Twelve-string Bass

The twelve-string bass is an electric bass with four courses of three strings each, though they occasionally have six courses of two strings.

Normal tuning is eeE-aaA-ddD-ggG, with one string of each course tuned similarly to the corresponding string of the four-string bass, and the remaining two strings tuned to the octave.

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]

Notable players


Other bass guitars with twelve strings

Although the model most commonly known as "the 12-string bass" is as described above, several other bass guitars with a total of twelve strings have been built to rarer or unique specifications.

Six-course bass

A bass with six courses each of two strings was played by John Paul Jones of Led Zeppelin.

See also

External links

Six-course bass


  1. ^ Spencer, Graham. "Cheap Trick's Tom Petersson, Inventor of the 12-String Bass, Adds to Rick's Picks Collection - Rick's Picks".
  2. ^ "Gretsch Announces Tom Petersson 12-String and 4-String Signature Basses".
  3. ^ "The Pearl Jam Reference Library - An Online Archive of Articles on Pearl Jam".

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