If it weren't for blues music, R&B, hip hop and rock would not exist.

Musician Kenny Wayne Shepard travels to the backwoods and highways in 10 different cities searching for blues musicians and artists who invented the music with its bass heavy beats and growling rhythms. These beats are still on any Nas record and Johnny Cash's later work with the help of producer Rick Rubin.

Shepard and producer Jerry Harrison (formerly of the Talking Heads) travel to Louisiana, Mississippi and Kansas speaking to the most famous blues musicians that aren't familiar to the rest of us on the West Coast: Clarence “Gatemouth” Brown, Neal “Big Daddy” Pattman, Jerry “Boogie” McCain and the only estrogen shot provided by Etta Baker who continued to play until her death last year at the age of 93.

The CD portion covers all 15 tracks that are featured on the DVD in their entirety. The DVD itself is a journey into blues history. Many of the old-timers are over 70-years-old and still play in clubs and anywhere else that would have them.

Apparently, there are many of those places that would have them since their music is a down home sound almost impossible to duplicate. They recall their experiences on the road, growing up poor, learning to play the guitar or harmonica by ear or watching their fathers play, exchange stories about other musicians who influenced them and how racism didn't prevent them from playing elsewhere.

Shepard and Harrison are simply in awe while interacting with these icons, whether it is sharing chicken or beers. Shepard confesses that the only musician that makes him nervous about his playing is the renowned B.B. King.

He's simply mesmerized sitting next to the King. Shepard reveals intimate deals that are not taught in music school

Grade: A