Jewish and folk music historian Robert Cohen has been here many times with his lectures/presentations on different aspects of many genres of music – from klezmer to doo-wop to folk songs to the history of our national “anthems.” His latest program, on Sunday afternoon May 19th at 1:30 PM, is titled Bob Dylan Revisited: What a Song Can Be. From Robert: “Bob Dylan has been absorbing influences from uncounted musical and literary sources since he was a teenager, and has in turn influenced over a half-century of songwriters that followed him, as well as the society and culture of his time. We’ll listen to some songs that we know from Dylan’s own singing or from others’, consider some of the sources of his lyrics and music and some of the impact he’s had on others’  music, and hear how this iconic American troubadour expanded the boundaries of what a song can say, and mean.” Robert has lectured and taught at the New York Public Library, the New England Conservatory of Music, the American Jewish Historical Society, the Brooklyn Historical Society, the Abigail Adams Smith Museum, the Jewish Theological Seminary, and the New School — where he worked with Pete Seeger, Tom Paxton, Richie Havens, Elizabeth Swados, and other notable musicians. He has also been a consultant to musicians and radio hosts.