Balmorhea's organic, classical-tinged instrumentals invoke a rare warmth, led by acoustic plucks, soft piano and silky strings. Constellations is a consistent effort, though certainly a bit one-dimensional. Though it is kind of the point, these sparse compositions are just a tad too precious and airy to carry much heft, making it a suitable soundtrack for studying or relaxed contemplation, but probably not worth revisiting often otherwise.