"Riley King, ever to be known as B.B. (1925-2015), was born into deep poverty in Jim Crow Mississippi. Wrenched away from his sharecropper father, B.B. lost his mother at age ten, leaving him more or less alone. Music became his emancipation from exhausting toil in the fields. Inspired by a local minister's guitar and by the records of Blind Lemon Jefferson and T-Bone Walker, and encouraged by his cousin, the established bluesman Bukka White, B.B....