breathiness

The smooth, even surfaces of Mr. Glass’s music expose his weaknesses as a pianist, but the faults added a kind of human breathiness to the piano’s embellished tread (reminiscent of Satie’s “Gymnopédies”) in the concluding piece, “The Orchard.” Ms. Sutter and her borrowed cello sang a little raucously over it, like Carly Simon at the end of the night.

Here standard acoustic instruments are played in ways that suggest electronic sound: violins whir and buzz, woodwinds produce a toneless breathiness and a gentle tapping evokes a heartbeat.