New Orleans legend Dr. John's Nonesuch debut, produced by Black Keys guitarist and uber-fan Dan Auerbach, distills half a century of this Rock and Roll Hall of Fame inductee's picaresque musical history, melding his shamanistic stage persona with the authority of a consummate studio musician, the cosmic conjurer with the street-savvy poet. The ten new songs on Locked Down, written by Dr. John with Auerbach and a handpicked crew of backing musicians, combine incantatory chants ("Ellegua") and often politically charged raps ("Revolution") with candid and soulful reflections ("My Children, My Angels"), swaggering R&B ("Big Shot"), and a healthy dose of hypnotic, simmering funk ("The King Of Izness").