John Duffey (1934-1996) was an influential American bluegrass musician, best known as a mandolinist, vocalist, and founding member of the renowned band, The Seldom Scene. Duffey was pivotal in blending traditional bluegrass with elements of folk and rock, which helped to expand the genre's audience. His distinct tenor voice and innovative mandolin playing were hallmarks of his style. Notable works include The Seldom Scene's albums such as "Act I" (1972) and "Live at the Cellar Door" (1974), which showcased his ability to reinterpret classic bluegrass standards and contemporary songs. Duffey's contributions to bluegrass were significant, as he was instrumental in the genre's "Newgrass" movement, which sought to modernize the sound while maintaining its roots. In addition to his work with The Seldom Scene, Duffey was a member of the pioneering bluegrass group The Country Gentlemen and collaborated with various artists throughout his career. His legacy endures through his recordings and influence on subsequent generations of musicians, solidifying his place in the evolution of bluegrass music.