He and his brother, Bobby, pioneered a style of three-part harmony singing that broke with bluegrass tradition. He was also an influential banjo player.He and his brother, Bobby, pioneered a style of three-part harmony singing that broke with bluegrass tradition. He was also an influential banjo player.Read MoreDeaths (Obituaries), Folk Music, Country Music, Banjos, Osborne, Bobby (1931- ), Osborne, Sonny (1937-2021), Osborne Brothers (Music Group), Rocky Top (Song)
