Appalachian people

Hillbilly is a term for people who dwell in rural, mountainous areas in the United States, primarily in the Appalachian region and Ozarks. As people migrated out of the region during the Great Depression, the term spread northward and westward with them.

Bluegrass music is a genre of American roots music that developed in the 1940s in the Appalachian region of the United States. The genre derives its name from the band Bill Monroe and the Blue Grass Boys. Like mainstream country music, it largely developed out of old-time music, though in contrast to country, it is traditionally played exclusively on acoustic instruments and also kept its roots in traditional English, Scottish and Irish ballads and dance tunes, as well as incorporating blues and jazz. It was further developed by musicians who played with Monroe, including 5-string banjo player Earl Scruggs and guitarist Lester Flatt. Bill Monroe once described bluegrass music as, "It's a part of Methodist, Holiness and Baptist traditions. It's blues and jazz, and it has a high lonesome sound."