Washtub bass

The washtub bass, or gutbucket, is a stringed instrument used in American folk music that uses a metal washtub as a resonator. Although it is possible for a washtub bass to have four or more strings and tuning pegs, traditional washtub basses have a single string whose pitch is adjusted by pushing or pulling on a staff or stick to change the tension. The washtub bass was used in jug bands that were popular in some African-American communities in the early 1900s. In the 1950s, British skiffle bands used a variant called a tea chest bass, and during the 1960s, US folk musicians used the washtub bass in jug band-influenced music.