Arthel "Doc" Watson (1923-2012) is arguably one of the most influential musicians Appalachia has ever produced. A musician's musician, Doc grew up on a subsistence farm in the North Carolina mountains during the Depression, soaking up traditional music and learning to play guitar even though he was blind. Rising to fame in the 1960s as part of the burgeoning folk revival scene, Doc became the face of traditional music for many listeners, racking up...