Editor's Note: In August, University of Mississippi Press will publish Shane K Bernard's book, "Swamp Pop: Cajun and Creole Rythym and Blues." Drawing on more than fifty interviews with swamp pop musicians in South Louisiana and East Texas, Bernard uncovers the roots of this overlooked, often derided sister genre of the popular Cajun and zydeco music. Over the next few issues, we'll publish excerpts from the book...