Pío Leyva looms among the giants of Cuban music. Though one of the most successful soneros of the pre-revolution era, he only earned international renown in his twilight years thanks to the landmark album and documentary Buena Vista Social Club. Born Wilfredo Pascual in Morón, Cuba, on May 5, 1917, he won a local bongo-drumming contest at the age of six and at 15 was tapped to sing with Juanito Blez's band Conjunto Caribe. Upon relocating to Havana, Leyva lent his appealingly gravelly vocals to a series of acts including Orquesta de Jesús Montago, Orquesta Raqueteros del Swing...