Fuzz bass

Fuzz bass is a style of playing the electric bass or modifying its signal that produces a buzzy, distorted, overdriven sound. Overdriving a bass signal significantly changes the timbre, adds higher overtones (harmonics), increases the sustain, and, if the gain is turned up high enough, creates a "breaking up" sound characterized by a growling, buzzy tone. One of the earliest examples may be the 1961 Marty Robbins Country and Western song "Don't Worry". By the mid- to late-1960s, a number of bands began to list "fuzz bass" in addition to "electric bass" on their album credits.