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.

Perfectly complementary in their earthy simplicity, the archive titles by Son House and Reverend Gary Davis offer an antidote to the antiseptic ephemera that is contemporary pop. None other than Dan ...