Lee Hays is remembered today as the bass singer of the Weavers, the popular folksinging quartet that included Pete Seeger and was blacklisted during the early years of the Cold War. Hays is especially well known for his collaborations with Seeger on a number of political songs, including "The Hammer Song," and for his central role in producing "Wasn"t That a Time!", the 1981 film documentary about the Weavers. But he was also a talented, multifaceted writer of prose. In "Sing Out, Warning! Sing Out, Love! ", Robert S.Koppelman brings together a selection of Hays"s published and unpublished literary output and places the author and his work in historical context. In these writings, Hays emerges as a learned, incisive, and witty advocate of a new aesthetic that he helped introduce to American culture - an aesthetic grounded in the music of both the Methodist Church of his family and the black churches of his Arkansas neighbors. Hays honed his participatory, inspirational musical...