The MAURERISCHE TRAUERMUSIK (MASONIC FUNERAL MUSIC) in C minor, K. 477/K. 479a by Wolfgang Amadeus Mozart (1756 - 1791) was composed in 1785 as a member of the Freemasons. It was performed during a Masonic Funeral service on November 17, 1785 in memory of Duke Georg August of Mecklenburg-Strelitz and Count Franz Esterhazy von Galantha, members of the Viennese aristocracy. This piece makes use of 3 basset horns that Mozart specifically wrote for fellow Freemasons, Anton David and Vincent Springer. Instrumentation: 0.2.1+3bssthn.0+CBsn: 2.0.0.0: Str (4.4.3.3.3 in set): (opt. Cl & 2Bsn for Bssthns included).