From the beginning, the Beatles acknowledged in interviews their debt to Black music, apparent in their covers of and written original songs inspired by Chuck Berry, Little Richard, Fats Domino, the Shirelles, and other giants of R&B. Blackbird goes deeper, appreciating unacknowledged forerunners, as well as Black artists whose interpretations keep the Beatles in play. Drawing on interviews with Black musicians and using the song "Blackbird"...