Elijah Wald is a Grammy winning writer, musician, and historian. His books include Escaping the Delta: Robert Johnson and the Invention of the Blues; How the Beatles Destroyed Rock 'n' Roll: An Alternative History of American Popular Music; Jelly Roll Blues: Censored Songs and Hidden Histories; The Mayor of MacDougal Street (source for the movie Inside Llewyn Davis); and Dylan Goes Electric! (source for the movie A Complete Unknown). He has taught at various universities and holds a PhD in ethnomusicology and sociolinguistics.
