In the 1930s and 40s the Marx Brothers kept the world laughing in good times and bad with such screen classics as Animal Crackers, Duck Soup and A Night at the Opera. Comedy was always the driving force behind the Marx Brothers team on-screen. Off-screen they were three unique individuals who shared a love of music. Music from Marx Brothersa plays and movies has been recorded by a variety of artists since the early 1920s, but it may surprise some to learn that the Marx Brothers, themselves, also left behind an impressive body of work on record.