The title 'Nocturno' describes the meditative and lyrical character of this piece for viola and piano. The entire piece is comprised of two distinct alternating themes: the first one, introduced by the viola solo in its lowest register, is a monologue, an austere melody similar to a plain chant, inspired in a way by Ligeti's viola sonata; the second theme is more lyrical, rhythmic and harmonically richer, as well as more interactive with the piano. Both themes alternate and combine variously throughout the piece in a process of permanent variation and development.

Nocturno was premiered in February 2007 in Hamilton, NY, by violist Laura Klugherz and pianist Steve Heyman.