the.com/jug band

means A folk/blues ensemble that gets its rhythm and bass from homemade or household implements—jugs, washboards, spoons, washtub basses—alongside a few real instruments like guitar or banjo.

from The form traces to early 20th-century African American string-band traditions in the American South, especially around Louisville and Memphis, where musicians who couldn't afford a brass band's instruments improvised with what was on hand. The signature sound comes from blowing across the mouth of a jug to produce a low, buzzing bass note—a technique with roots in older folk practices of turning vessels into instruments. By the 1920s–30s, jug bands like the Memphis Jug Band were recording commercially, and the style later fed into skiffle and the folk revival.