This isn't MTV. This isn't top-40 radio or the Billboard Hot 100 singles chart. These are two street performers named David and Roselyn, playing songs for spare change in the French Quarter of New Orleans. This is Sylvester ("Sunshine") Lee teaching a class in African drumming in East St. Louis, Ill. This is polka accordionist Karl Hartwich and Cajun bandleader D.L. Menard and bluesmen Big Jack Johnson and Little Milton.
They are the stars of River of Song: A Musical Journey down the Mississippi, an ambitious four-hour, four-part documentary series that begins airing on PBS stations this month (check local listings)....