In music, we don't tend to talk about things. We're too concerned about the meaning of the story, about the dynamics of the performance, the reception, the syntax, the gesture, the movement; we're too concerned about how a sound got here, where it came from, how it was made, where it's going and why. We pretend that music is a language. Greenwald asks us to get busy with things. About a minute's worth of material becomes a cycle of seven works, performed in full for the first time on this album …