Haffner Serenade: Serenade in D major, KV 250 is a serenade by Wolfgang Amadeus Mozart, composed in 1776. Scored for winds and strings in a series of dance-like, multi-movement movements, it exemplifies Classical-era clarity and charm and occupies a place in Mozart's Salzburg-period output as an occasional ceremonial work that bridges divertimento and more symphonic writing.