Opened on March 18, 1965. Closed September 25, 1965 after 220 performances — 6 months. Do I Hear a Waltz? is a musical with a book by Arthur Laurents, music by Richard Rodgers, and lyrics by Stephen Sondheim. It was adapted from Laurents' 1952 play The Time of the Cuckoo, which was the basis for the 1955 film Summertime starring Katharine Hepburn. Wiki link