Eric Weisbard’s collection of essays, “Listen Again: A Momentary History of Pop Music,” makes the case that moments, not movements, are what characterize pop music. The book absorbs a century of pop eclecticism, looking at musicians that defy genre boundaries, songs that take inspiration from all over the place,
and studio mishaps that have unintended consequences. It features talks from the renowned Experience Music Project Pop Conference, an annual gathering of cultural aficionados to talk about pop music scholarship, criticism, and culture.