Monday’s announcement that Dylan had sold the rights to his six-decade trove of tunes to Universal Music in a deal that is believed to be the biggest ever of its kind: Sources told Bloomberg it was more than $200 million, while the New York Times reported that it could be more than $300 million.This news came just a few days after Nicks sold 80 percent of her stake in her publishing rights — for both her Fleetwood Mac and solo work — to music publisher Primary Wave for $100 million, according to