Augusta Read Thomas is, in the best sense, an artist thrice obsessed. First, she must compose: writing music is no vocation, no following, but a physiological need. She's been doing it since she was four, and at this point, it sustains her being as much as breath and sleep. Second, Thomas must communicate: her music is only one side of a story involving two parties, and in its lucent colors and brazen gestures, one can almost sense what kind of listener she has in mind. Yet, another obsession fortifies Thomas and her work, a consistent, burning vision that seems to materialize...