'Whispering' Bob Harris journeys to America's country music capital to reveal why Nashville became Music City USA. From the beginnings of the Grand Ole Opry on commercial radio, through the threatening onset of rock 'n' roll in the 1950s, right up to the modern mainstream hits of Music Row, this is the story of how music has shaped Nashville and why today it's a place of pilgrimage for musicians from all over the world.

• BBC Four
• Bob Harris
• Emmylou Harris
• Duane Eddy