Violin Sonata in C major (K. Anh.C 23.02)
ヴォルフガング・アマデウス・モーツァルト作
The Violin Sonata in C major (K. Anh.C 23.02) is a short, three-movement sonata for violin and keyboard long transmitted under Mozart’s name but now regarded as spurious (composer unknown). It survives in later printed sources rather than autograph material, and details such as date and place of origin (often given as 1784) remain uncertain.
What Is Known
The Violin Sonata in C major is catalogued as K. Anh.C 23.02 and is today generally treated as spurious, with the composer unidentified [1]. The work appears in a 19th-century collected edition (Mozarts Werke, Serie XVIII, published by Breitkopf & Härtel in 1879), a transmission route that—by itself—does not establish Mozartian authorship [1].
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It is scored for violin and piano and laid out in three movements (Vivace; Adagio con moto; Rondo. Allegro) [1]. Although the piece is sometimes associated—uncertainly—with the year 1784, no secure place of composition or documentary link to Mozart’s Vienna circle has been established in standard reference summaries [2].
Musical Content
On the page, the sonata presents the familiar late-18th-century “keyboard sonata with violin” balance: the piano carries much of the thematic argument, while the violin largely doubles, answers, and decorates with brief cantabile lines and passagework rather than dominating as a fully independent partner [1]. The opening Vivace favors bright C-major rhetoric and regular phrasing; the central Adagio con moto turns to a more lyrical, sustained texture; and the concluding Rondo. Allegro closes with periodic returns of a refrain, aiming at lightness and forward momentum [1].
[1] IMSLP — Violin Sonata in C major, K.56 / K⁶ Anh.C 23.02: authorship note (spurious, composer unknown), instrumentation, movement list, and 1879 Breitkopf & Härtel collected-edition publication details.
[2] IMSLP — List of compositions by Mozart: entry for Anh.C 23.02 identifying it as a spurious violin sonata in C major (composer unknown).