Why Did Bob Dylan Admire Roy Orbison?

David Senra, reading Bob Dylan's Chronicles: Volume One, says Dylan greatly admired the singer Roy Orbison. The book's account, as Senra reads it, is that Orbison had no peer, which is what Dylan wanted in his own career.

Orbison had moved past the genres. His music mixed styles, including some that had not been invented yet. A listener could not tell mariachi from opera. Dylan writes that with Orbison it was all about fat and blood, that he sounded like he was singing from an Olympian mountaintop, and that he sang his own songs in three or four octaves. He sang like a professional criminal. His voice could jar a corpse. His songs had songs inside them. He was deadly serious, and nothing else on the radio was like him. Next to Orbison, Dylan calls the rest of the playlist Dullesville, gutless, and flabby.

That voice with no peer made every other song sound gutless, and Dylan wanted a career built the same way.