Opened at the Mark Hellinger Theatre on May 4, 1976. Closed May 8, 1976 after 7 performances — 4 days. 1600 Pennsylvania Avenue is a 1976 musical with music by Leonard Bernstein and book and lyrics by Alan Jay Lerner. It is considered to be a legendary Broadway flop, running only seven performances. It was Bernstein's last original score for Broadway. Wiki link