“Musical manuscript” (lost), K. 626b/52
av Wolfgang Amadeus Mozart
The item known simply as “Musical manuscript” (lost), K. 626b/52, is a Köchel supplement entry for a now-missing source once attributed to Wolfgang Amadeus Mozart (1756–1791). No music survives, and neither its date, place, key, scoring, nor purpose can currently be established.
What Is Known
K. 626b/52 is listed in the Köchel catalogue among supplementary entries as a lost “Musical manuscript.” The entry provides no incipit (notated opening), instrumentation, key, dating, provenance, or present manuscript location, and no extant musical text is available for evaluation [1]. As a result, the attribution to Mozart cannot be verified from the music itself, and the item must be treated as doubtful/spurious or at least unconfirmed on present evidence.
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Despite its proximity in numbering to K. 626 (Requiem), the catalogue entry does not clarify any musical or documentary connection with the Requiem materials, nor does it specify whether the lost source was a sketch, a copy, or a more substantial draft [1].
Musical Content
No musical content can be described: the manuscript is lost, and the Köchel listing does not preserve an incipit or any other notated excerpt from which style, genre, or function could be inferred [1].
[1] Wikipedia: Köchel catalogue entry table listing K. 626b/52 as “Musical manuscript” (lost), without musical incipit or further details.