Symphony in D (lost or unidentified), K. Anh.C 11.07 (D major)
ヴォルフガング・アマデウス・モーツァルト作
Mozart’s Symphony in D (K. Anh.C 11.07) is a lost and doubtful work, tentatively dated to around 1769, when the composer was about 13. It survives only as a brief thematic incipit in an 18th-century catalogue entry, leaving its movements, scoring, and even authorship uncertain.
Background and Context
Around 1769, Wolfgang Amadeus Mozart (1756–1791) was entering early adolescence and working under the close guidance of his father, Leopold Mozart, in Salzburg (though travel and outside commissions were increasingly part of the family’s musical life). In this period Mozart was already writing fluently for orchestra, producing compact symphonies that align with the mid-century Austrian and South German sinfonia tradition—works often intended for courtly and civic occasions and typically built from brisk, clearly profiled themes.
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K. Anh.C 11.07 is usually placed approximately in this year, but it is best understood as a catalogue “shadow”: the work is not extant, and it is not securely attributable to Mozart on musical or documentary grounds. Modern reference lists therefore treat it among the symphonies of spurious or doubtful authenticity, and as one of several missing symphonies whose status remains unresolved.1
Musical Character
No complete score, parts, or reliable description of the symphony survives. What is known is limited to a two-bar incipit preserved in the Breitkopf & Härtel manuscript catalogue—enough to register the work as a Symphony in D major, but not enough to reconstruct movements, form, or orchestration with confidence.1
Place in the Catalog
As a putative Salzburg-era D-major symphony from Mozart’s 13th year, K. Anh.C 11.07 would—if genuine—belong to the stream of youthful orchestral pieces written alongside serenades, cassations, and other practical ensemble music. Yet because it is known only from a tiny thematic fingerprint and lacks corroborating sources, it remains a doubtful, effectively unperformable entry rather than a work with an established place in Mozart’s symphonic development.1
[1] Wikipedia — “Mozart symphonies of spurious or doubtful authenticity” (entry for Anh.C 11.07: D major; known only by a two-bar incipit in the Breitkopf & Härtel manuscript catalogue; treated as doubtful/lost).