Singing Out: An Oral History of America's Folk Music Revivals is a multi-voiced, historical narrative of the North American folk music revivals of the twentieth century culled from more than 150 oral history interviews from 1976 to 2006, among them Charles Seeger, Pete Seeger, Bernice Reagon, and Arlo Guthrie. The authors have spent quite a bit of time addressing the critical, interesting, and important question: 'What is folk music?' Defining folk music is not only difficult and complex, it's slipperier than a greased eel! Through the use of extensive quotes and interviews Beer and Dunaway revisit the folk revival head-on, causing me to rethink the role individuals as diverse as Tristam Coffin, Pete Seeger, Mississippi John Hurt played during this important period in American music history.