Today, the Musical, Part Four or So

The minute I turn from composing the piece to talking about the piece--say, for a grant application--the thing threatens to dry up. But today did bring an idea or two. 
1
I'd been thinking of how to move what I might call poems--really just a series of character sketches, not unlike many poems I've written--to what I might call songs. Working the former into the latter. Instead, maybe the song can move to where the poem is. If I have something that works as poem, find a way to sing it.
2
The play involves people who live in an apartment building, a setting that offers potential for both individual and group exploration. I'd been thinking that sooner or later, likely later in Act Two, a meeting of the Tenants' Committee would be a chance for the individuals to sing in duos, trios, etc., maybe even by way of resolution/climax, but don't quote me on that. Anyway, today |I realized that I'll need an earlier iteration of a group voice in some form. A scene writ smaller than the TC meeting, but building toward it.
3
The cast of characters, and their individual developments, must remain fluid at this point. So far, one of them is the live-in janitor who at one point takes the woman in the vestibule to an (imaginary) patio on the building roof. His doing so, and his singing up there, doesn't fit with the "silent one" tag I've stuck on this guy so far. But that's the kind of work I'll have to do with all these characters. Find out who they are, and let them be true to it.