So there's this couple, in their 70s, going strong but for the usual "body flaws." They explore this concept in a song set both in their living room at a downtown heritage apartment (called today, for the first time, the Champlain) and at the local pool in high summer. Feeling free in the sun, the husband and wife sing and dance with noodles and floaties and balls--a pool toy story. They don't sit down until the end, which is where we leave them. They'd started that way when Patty, in the hallway, walks by their apartment, ear cocked. She gives us a dozen words of exposition and disappears until needed again. At the same time, the man and woman stand up, a tad unsteadily, and they're doing a verse at the pool. Of course, for the location switching to work, it has to work. I think it will.
Writing such a scene, I have to believe it. And so will the actors, so the audience believes it.