Everyone in the blues has a journey to talk about. For director Marc Lempert and producer Todd Slobin that journey centered around the harmonica, a staple of the blues. Their journey – more like an odyssey – took them deep inside the instrument, its players, and its culture. They, like others who have embraced the harmonica and made it a part of their lives, soon discovered the power and mystery of the instrument. Since the harmonica is the only instrument where one has to breathe in and out to produce sound, it forms an undeniable connection to the player as it captures the body and spirit of each individual who puts it to his mouth. With Huey Lewis as the narrator, the film travels the world to illustrate the instrument’s history, ubiquity, and present impact. The interviews, stories, how-tos, and performances by masters such as James Cotton, Charlie Musselwhite, John Popper, Magic Dick, Lee Oskar, Rick Estrin, Delbert McClinton, Jerry Portnoy, Kim Wilson, and Jason Ricci are thrilling enough to get you to find that old Marine Band and start drawin’ some blues riff on the reeds.