How does Nora Ephron use imagery in Imaginary Friends?

Ephron utilizes auditory imagery by placing songs inbetween scenes to enhance and comment on the action of the play. Sometimes she has an ensemble, used as a traditional chorus, as in the first act when Hellman is reminiscing about her childhood. The ensemble sings "The Fig Tree Rag" to heighten the fictional nature of Hellman's memories. In the second act, Ephron introduces two male characters, Frankie Fact and Dick Fiction, who sing about their "act." They admit that they "tend to tangle" at times, just as the main characters do, but their main point is that "fact may in fact be fiction" and "sometimes, in fact, there's fiction too."