Book excerpt: If you've ever wanted to know the "correct" words to "Roll Me Over," or wondered where the melody of "Sweet Betsy from Pike" came from, this book can answer your questions. Extensively revised and including forty more songs than its predecessor, this new edition of The Erotic Muse is a unique scholarly collection of bawdy or forbidden American folksongs. Ed Cray presents the full texts of some 125 songs, with melodies for most of them and detailed annotations for all. His lively commentary places the songs in historical, social, and, where appropriate, psychological context.