Sunday Feature: Sound Sources

Elizabeth Alker examines rock and pop musicians' debt to classical music's avant garde, with many of the most innovative those who dig deep into the concert halls, conservatoires and rehearsal rooms for new ideas. She joins the dots from Musique Concrete to the Beatles, from Stockhausen to Sonic Youth, from John Cage to Nils Frahm, and from Pauline Oliveros to techno. With contributions by Paul McCartney, Jean-Michel Jarre, Suzanne Ciani and Sonic Youth founder member Lee Ranald