Bluegrass music started in Appalachia, but its roots go back to the jigs, reels, and ballads from the British Isles, and the to the blues and jazz tunes black musicians - and their banjos - brought to the region. With its two, three, and four-part vocal harmonies, acoustic string instruments, and emphasis on the off-beat, Bluegrass is a high-energy old-time music genre.
The music was called "Bluegrass" after Bill Monroe and his band, the Bluegrass Boys, became popular. The band was comprised of a group of musicians who have each become legends: guitarist Lester Flatt, banjoist Earl Scruggs, fiddler Chubby Wise, bassist Howard Watts, and of course, Bill Monroe on mandolin.