Listen: Outtakes from Dylan's Highway 61 Revisited sessions

Bob Dylan's sixth studio album Highway 61 Revisited was released 50 years ago this week. Listen below to two outtakes from the recording sessions that took place on July 29th and 30th, 1965: "Positively 4th Street" and "Please Crawl Out Your Window". Despite being left off the album, both tracks were later released as singles.