Mozart’s “Musique” (lost) (K. 626b/05)
di Wolfgang Amadeus Mozart
“Musique” (K. 626b/05) is a lost and poorly documented item listed in the Köchel supplement under the late appendix group associated with K. 626 (the Requiem). No manuscript, incipit, scoring, key, date, or secure context survives, and the attribution to Wolfgang Amadeus Mozart (1756–1791) is therefore doubtful [1].
What Is Known
The entry K. 626b/05 appears only as the title “Musique” in the supplementary listings; it is explicitly regarded as lost, with no surviving musical text to examine [1]. Beyond that bare label, the standard reference tradition offers no reliable details: neither instrumentation nor intended function can be recovered, and there is no documented first performance, commissioner, or destination manuscript.
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Because the item is transmitted without a score and without corroborating documentary anchors, its authenticity cannot be tested through handwriting, paper, or stylistic comparison. In practical terms, K. 626b/05 should be treated as a doubtful or possibly spurious “shadow entry” attached—at least bibliographically—to the orbit of Mozart’s last year, but not demonstrably part of the Requiem materials themselves [1].
Musical Content
No musical content can be described: the work is lost, and the catalogue entry preserves neither incipit nor any technical description [1].
[1] Wikipedia: Köchel catalogue — includes the supplementary entry “626b/05” labeled “Musique” (lost).