Jan-Peter Herbst is Reader (Associate Professor) in Music Production at the University of Huddersfield. His background as a rock guitarist has led him to specialize in the study of electric guitar playing and rock and metal music production. Herbst has also edited The Cambridge Companion to Metal Music (2023). Steve Waksman is Elsie Irwin Sweeney Professor at Smith College. He is the author of Instruments of Desire: The Electric Guitar and the Shaping of Musical Experience (1999), This Ain't the Summer of Love: Conflict and Crossover in Heavy Metal and Punk (2009), and Live Music in America: A History from Jenny Lind to Beyoncé (2022).