9. Bob Dylan, 'The Freewheelin' Bob Dylan' (1963)
Dylan's eponymous debut was a scraggily collection of blues and folk tunes topped off with just two original songs. This 1963 follow-up belatedly introduced Bob Dylan, songwriter. "Blowin' in the Wind" is a metaphysical rumination disguised as a protest song, serving as the new folk movement's anthem and its epitaph. Long before Dylan ever strapped on an electric guitar, the apocalyptic wrath of "Masters of War" and "A Hard Rain's Gonna Fall" should have clued in folkies that this guy might just have some different priorities.