Mozart - Great Mass in C minor, Autograph score

Great Mass in C minor (German: Große Messe in c-Moll), K. 427/417a, is the common name of the musical setting of the mass by Wolfgang Amadeus Mozart, which is considered one of his greatest works. He composed it in Vienna in 1782 and 1783, after his marriage, when he moved to Vienna from Salzburg. The large-scale work, a Missa Solemnis, is scored for two soprano soloists, a tenor and a bass, double chorus and large orchestra. It remained unfinished, missing large portions of the Credo and the complete Agnus Dei. The work was composed during 1782–83. In a letter to his father Leopold dated 4 January 1783, Mozart mentioned a vow he had made to write a mass when he would bring his then fiancée Constanze as his wife to Salzburg to meet his family for the first time after his father's earlier opposition. Constanze then sang the “Et incarnatus est“ at its premiere. The first performance took place in Salzburg on Sunday 26 October 1783 (the twentieth Sunday after Pentecost). Moz