You may be cool, but you're not "my first name has Wolf in it" cool.
Eine Kleine Nachtmusik is the byname of Serenade No. 13 in G Major, K 525, serenade for two violins, viola, cello, and double bass by Wolfgang Amadeus Mozart, admired for its lively, joyful quality and its memorable melodies. The piece was completed on August 10, 1787, but was published posthumously. In present-day practice, it is typically performed in orchestral arrangement.
Mozart produced many serenades, the 13th of which, nicknamed Eine kleine Nachtmusik, is his best known. The four-movement work opens with a bright allegro in sonata form, and a slow, lyrical second movement follows. The third movement is a light minuet, and the finale is a brisk rondo. Originally, the piece contained a second minuet, but that movement has been lost. The specific occasion, if any, for which Eine kleine Nachtmusik was composed has never been determined.
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Britannica Academic, s. v. "Eine kleine Nachtmusik," accessed December 18, 2015, http://academic.eb.com/EBchecked/topic/1210597/Eine-kleine-Nachtmusik.