"Roots of rock n' roll" . . "Roots of rock n' roll. 1, 1927-1938" . . . . . . . . . . "Roots of rock n' roll. 1" . . . . . . "38355769" . . . . . . . . . . . . . "Roots of rock n' roll. 1, 1927-1938" . "Roots of rock n' roll" . . . . . "Roots of rock n' roll. 1" . . . . . . . . . . . . . . . .