"In another time and place, E. Gab Blackman and William Sousa "Sou" Bridgeforth might have been as close as brothers, but in 1950s Nashville they remained separated by the color of their skin. Gab, a visionary yet opportunistic radio executive, saw something no one else did: a vast and untapped market with the R&B scene exploding in Black clubs across the city. He defied his industry, culture, government, and even his own family to broadcast Black...