I'm well into the second (of three) scenes of Everything is Green. The action is simple--a couple, in their kitchen in the morning, argue about something the man believes the woman has done, and which she denies. This scene plays out three times, each time at greater length and in greater detail than before, but with no greater communication between the characters.
The music forms the background for this domestic inaction, rather than amplifying or "commenting" on it. Each scene has a different textural basis and rhythmic profile, but is based on similar harmonic material. The two singers share some melodic materials (but not at the same time or even in the same scene) and rhythmic characteristics, but generally speaking, their music remains as separate as they seem to be.
I also have three other pieces going, at various early stages, and I'll probably write about them as they progress.