MusicSonic Reducers: Bruce Springsteen Sells His Masters and Music Publishing for $500 MILLION Dec 17, 2021Facebook Twitter Pinterest WhatsApp Linkedin ReddIt Email Print Sonic Reducers. 1 topic. 2 music nerds. 5 minutes.We discuss Bruce Springsteen’s decision to sell his masters for $500 million, try to guess which artists will sell next, and when we can expect to start hearing Hungry Heart used to sell hamburgers.