3 ([return])
[ André possessed a careful copy of these two pieces, inscribed by Mozart "Sinfonia Concertante," as if for their special performance at a concert in Vienna, March 20,1783.]
4 ([return])
[ The customary attempt to give a peculiar charm to the trio of the minuet by means of unusual instrumentation is here apparent in the solos for the flute in the first trio and for the horn in the second. In Mozart's autograph score the flute part is left blank: was the player to improvise?]
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[ I do not know André's authority for his assertion that it was composed in 1780, but it appears to me to be justified. Mozart sends from Vienna (June 27, 1781) for "The Sonata ä quatre mains in B, and the two Concertos for two claviers," and he writes later on that he had played the Concerto ä duo with Frl. Auemhammer at a concert (November 24, 1781). Two clarinets were added to the original accompaniment, on a flyleaf, for this performance. The second concerto which is mentioned is no doubt that originally written for three claviers, and afterwards for two (p. 331).]
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[ The Credo as far as the "Et in spiritum" was afterwards laid aside; it was in 3-4, with the doubtful superscription, "Tempo di ciacconna.">[
7 ([return])
[ The Dixit and Magnificat of the first vesper is in C major, Confitebor in E minor, Beatus vir in B flat major, Laudate pueri in F major, Laudate Dominum in A flat major. The Dixit and Magnificat of the second vesper are also in C major, Confitebor in E flat major, Beatus vir in G major, Laudate pueri in D minor, Laudate Dominum in F major.]