A child prodigy, Mozart wrote his first symphony when he was eight years old and his first opera at 12. He went on to write some of the most important masterpieces of the Classical era, including symphonies, operas, string quartets and piano music.
This was Mozart's composition for a chamber ensemble (a string quartet with an added double-bass). It is probably one of his most popular pieces. Oddly enough, Mozart never published 'Eine Kleine Nachtmusik' in his lifetime. It was left up to his widow, Constanze, to sell it in a job lot of his music to a publisher in 1799, presumably to raise much needed cash. It saw public light of day only in 1827, some forty years after it was written.