Bob Dylan is turning 70 this May. And Sound Opinions feels that this birthday boy deserves not one, but three episodes in his honor. This week is the first installment and focuses on Dylan’s early years as a folkie and protest singer in New York. Dylan moved to Greenwich Village in 1961 at age 19, and in just a few years he was signed to Columbia Records, teamed up with manager Albert Grossman, released 4 albums and became “the voice of a generation.” Never one to be pigeonholed, Dylan abandoned categories just as soon as he was assigned them. Jim and Greg talk to Dylan expert Clinton Heylin about the singer’s influences during those years, and his growth as a songwriter and performer. Clinton recently explored Dylan’s entire song catalog in two companion books, Revolution in the Air and Still on the Road.