Stefan Grossman sees himself as a "bridge." In the early 1960s, Grossman studied with blues and gospel singer Rev. Gary Davis, who sang on the streets of Harlem and taught at his home in the Bronx.

"I want to pass on the joy of playing this music to others, just as Rev. Davis passed it on to me." Rev. Gary Davis was a prolific guitar player. A protégé aims to keep his legacy alive Stefan ...