Stephen Sondheim lyrics for a musical version of "The Exception and the Rule"; according to Robbins, Bernstein would not work without Sondheim. When Sondheim agreed, Guare asked: "Why haven't you all worked together since "West Side Story"?" Sondheim answered, "You'll see". Guare said that working with Sondheim was like being with an old college roommate, and he depended on him to "decode and decipher their crazy way of working"; Bernstein worked only after midnight, and Robbins only in the early morning. Bernstein's score, which was supposed to be light, was influenced by his need to make a musical statement. Stuart Ostrow, who
Stephen Sondheim write for the theatre, so I wanted someone who did not disdain theatre music." Barrow suggested that Sondheim study with Milton Babbitt, who Sondheim described as "a frustrated show composer" with whom he formed "a perfect combination". When he met Babbitt, he was working on a musical for Mary Martin based on the myth of Helen of Troy. Sondheim and Babbitt would meet once a week in New York City for four hours (at the time, Babbitt was teaching at Princeton University). According to Sondheim, they spent the first hour dissecting Rodgers and Hart or George Gershwin or studying Babbitt's