HOSTIAS ET PRECES sheet music by Mozart (Requiem Mass in D Minor k. 626) OPERA AND ORGINAL VOCAL SCORE (English Edition)

The Requiem in D minor, K. 626, is a requiem mass by Wolfgang Amadeus Mozart (1756–1791). Mozart composed part of the Requiem in Vienna in late 1791, but it was unfinished at his death on 5 December the same year. A completed version dated 1792 by Franz Xaver Süssmayr was delivered to Count Franz von Walsegg, who commissioned the piece for a requiem service to commemorate the anniversary of his wife’s death on 14 February.The autograph manuscript shows the finished and orchestrated Introit in Mozart’s hand, and detailed drafts of the Kyrie and the sequence Dies irae as far as the first eight bars of the Lacrymosa movement, and the Offertory. It cannot be shown to what extent Süssmayr may have depended on now lost “scraps of paper” for the remainder; he later claimed the Sanctus and Benedictus and the Agnus Dei as his own.Walsegg probably intended to pass the Requiem off as his own composition, as he is known to have done with other works. This plan was frustrated by a public benefit performance for Mozart’s widow Constanze. She was responsible for a number of stories surrounding the composition of the work, including the claims that Mozart received the commission from a mysterious messenger who did not reveal the commissioner’s identity, and that Mozart came to believe that he was writing the requiem for his own funeral.In addition to the Süssmayr version, a number of alternative completions have been developed by musicologists in the 20th century. The Hostias opens in E♭ major in 34, with fluid vocals. After 20 measures, the movement switches to an alternation of forte and piano exclamations of the choir, while progressing from B♭ major towards B♭ minor, then F major, D♭ major, A♭ major, F minor, C minor and E♭ major. An overtaking chromatic melody on Fac eas, Domine, de morte transire ad vitam (“Make them, O Lord, cross over from death to life”) finally carries the movement into the dominant of G minor, followed by a reprise of the Quam olim Abrahae promisisti et semini eius fugue.The words “Quam olim da capo” are likely to have been the last Mozart wrote; this portion of the manuscript has been missing since it was stolen at 1958 World’s Fair in Brussels by a person whose identity remains unknown.