In addition to guitar-based blues, jug bands, such as Gus Cannon's Jug Stompers and the Memphis Jug Band, were extremely popular practitioners of Memphis blues. The jug band style emphasized the danceable, syncopated rhythms of early jazz and a range of other archaic folk styles. It was played on simple, sometimes homemade, instruments such as harmonicas, violins, mandolins, banjos, and guitars, backed by washboards, kazoo, guimbarde and jugs blown to supply the bass.
^ abcMiller, Jim (1980). The Rolling Stone illustrated history of rock & roll. New York: Rolling Stone. ISBN0394513223. Retrieved 5 July 2012. Black country bluesmen made raw, heavily amplified boogie records of their own, especially in Memphis, where guitarists like Joe Hill Louis, Willie Johnson (with the early Howlin' Wolf band) and Pat Hare (with Little Junior Parker) played driving rhythms and scorching, distorted solos that might be counted the distant ancestors of heavy metal.