Two Freemason Songs (lost), K. 692
ヴォルフガング・アマデウス・モーツァルト作

Mozart’s Two Freemason songs (K. 692) are a pair of lost vocal canons associated with his Masonic circle and dated to 1785. No musical text survives, and the attribution itself is treated as doubtful in modern cataloguing.
What Is Known
The Köchel catalogue records two items under K. 692 (K. 692/1–2), described as two Masonic songs—apparently canons—and dated 1785; the place of origin is not securely transmitted in the surviving notices.[1] No manuscript or early copy is known to survive, so the works cannot be edited or performed from sources today.[1]
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Given the fragile documentation, K. 692 is best regarded as a lost work of doubtful authenticity: it may preserve a genuine reference to Mozart’s lodge music-making in 1785, but it may equally reflect a later, mistaken attribution in secondary records.[1] In that year—Mozart aged 29—he was deeply involved with Viennese Freemasonry and composed securely attributed Masonic music, including the Maurerische Trauermusik (Masonic Funeral Music), K. 477 (1785).[2]
Musical Content
Because no notated music (and no reliable text underlay) for K. 692 survives, nothing specific can be said about its melodic profile, scoring in practice, or contrapuntal design beyond the general catalogue description as Masonic canons.[1]
[1] Köchel Verzeichnis (Mozarteum): entry for K. 692/1–2, “Two Masonic songs” (catalogue description; lost/doubtful work context).
[2] Wikipedia: Maurerische Trauermusik, K. 477 (context for Mozart’s securely attributed Masonic output in 1785).




