Andante to a Violin Concerto of Viotti (lost), K. 470
di Wolfgang Amadeus Mozart

Mozart’s Andante in A major (K. 470) was completed in Vienna on 1 April 1785 and intended as a replacement slow movement for a violin concerto by Giovanni Battista Viotti. The music itself is lost, leaving only a short incipit and catalogue descriptions to suggest its scope and scoring.
What Is Known
The Andante in A major (K. 470) is recorded as a completed, authentic Mozart work, dated Vienna, 1 April 1785 [1]. It was conceived for violin and orchestra, apparently to serve as a slow movement for a violin concerto by Giovanni Battista Viotti (1755–1824), but no full score survives [2]. What can be reconstructed with confidence is limited to its key, its intended function as an Andante, and its orchestral disposition as transmitted in the Mozarteum’s catalogue entry: solo violin with 2 oboes, 2 horns, and strings [1].
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In early 1785 Mozart—29 years old and firmly established in Vienna—was writing at peak intensity for the city’s concert life, and K. 470 falls squarely into this period of refined, vocal slow movements and carefully colored wind writing (even when, as here, the soloist is a string instrument).
Musical Content
Because the Andante is lost, there is no secure basis for describing its form, thematic profile, or harmonic trajectory. The only concrete musical trace reported in the Neue Mozart-Ausgabe commentary is a four-bar incipit, which confirms the work’s existence but does not permit a stylistic reading beyond the broad expectation of an expansive, lyric middle movement for violin with oboes and horns [2].
[1] Internationale Stiftung Mozarteum, Köchel-Verzeichnis entry for KV 470: dating (Vienna, 1 April 1785), key (A major), and instrumentation (solo violin; 2 oboes, 2 horns, strings).
[2] Digital Mozart Edition (Neue Mozart-Ausgabe), "Violin Concertos and Single Movements" (English preface/notes): states KV 470 is lost and survives only as a four-measure incipit; discusses the work among single movements.




