Joan Baez isn't the best interpreter of Bob Dylan's songs (Nina Simone and the Byrds come to mind). She has, however, been one of his most unwavering partisans. Indeed, the queen of JFK-era folkies first recorded Dylan songs in 1963 when she was the more celebrated of the two and she's repeatedly returned to him as a source of material. Baez Sings Dylan collects covers cut for Vanguard in the '60s, though all but five of the 20 tracks come from her 1968 two- record, all-Dylan set, Any Day Now. Baez's rather formal phrasing works best with the more stately songs.