(n.) A night piece, or serenade. The name is now used for a certain graceful and expressive form of instrumental composition, as the nocturne for orchestra in Mendelssohn's Midsummer-Night's Dream music.

Nachtmusik absolute music adaptation air varie aleatory aleatory music arrangement chamber music chamber orchestra composition descant electronic music etude exercise harmonization incidental music instrumental music invention opus orchestration piece production program music ricercar score sonata sonatina string orchestra string quartet study theme and variations trio variation work