Celebrity talent manager Scooter Braun sold Taylor Swift’s master recordings from her first six albums to Los Angeles-based investment firm Shamrock Capital Advisors LLC, marking a new flashpoint in the tussle between the pop superstar and her former label as the value of music soars in the streaming era.
The deal, which closed in the last two weeks, is valued at more than $300 million—about what Mr. Braun’s Ithaca Holdings LLC paid for the entirety of Ms. Swift’s former label, Big Machine Label Group LLC, a year and a half…
