"This documentary features rarely seen performances by seven legends of Country Blues guitar. Featured during the show are appearances by Bukka White, Sam Chatman, Big Joe Williams, Huoston Stackhouse, Son House, Rev. Gary Davis, and Leadbelly. Over a dozen songs are performed including ""Keep Your Lamp Trimmed and Burning,"" ""Sloppy Drunk Blues,"" ""Sam's Rag,"" and ""Goodnight Irene."""