Baku, December 17, AZERTAC Bruce Springsteen has sold his music rights to Sony Music Entertainment in what may well be the biggest transaction ever struck for a single artist’s body of work, according to The New York Times.News of the deal, which covers the entirety of Springsteen’s work as a recording artist and songwriter, emerged late Wednesday, with no comment from Sony or Springsteen. But on Thursday, Sony Specific terms were not disclosed, but the transaction is valued at about $550 million, according to two people briefed on the deal, who spoke anonymously because they were not authorized to discuss the matter.