Earl Scruggs’ legendary banjo playing, aptly named “Scruggs Style,” has left its mark on American pop culture and inspired generations of banjo players. In the late 1960s, Scruggs, along with his sons, bravely crossed musical boundaries, but his musical journey really started back at the beginnings of bluegrass, playing with Bill Monroe and later, Lester Flatt. We’ll talk to Earl and his sons, Randy and Gary, about performing on the stage of the Ryman Auditorium and why he doesn’t need to crack jokes about the banjo. New Hampshire-born folk singer songwriter Tom Rush may have gone to Harvard and studied with a ballad scholar, but he still knows how to sing the blues. We’ll visit with Rush to learn more about Boston’s folk scene in the 1960s, his time as a radio DJ and his inspired approach to songwriting.