Four Sketch Leaves (lost), K. 626b/01
av Wolfgang Amadeus Mozart
Mozart’s Four sketch leaves (K. 626b/01) is a lost, poorly documented source listed among sketches and fragments connected—at least by catalogue placement—to the Requiem in D minor, K. 626. No musical text is known to survive, and the date, place, key, and original purpose of the leaves remain unknown.
What Is Known
K. 626b/01 is described in the current catalogue tradition simply as “Four sketch leaves (lost)”—a set of four pages that are no longer traceable and whose contents were not transmitted in any usable form (no incipit, no copy, no facsimile) [1]. As a result, it cannot be established whether the leaves contained draft material for the Requiem (K. 626), sketches for another work, or even non-Mozartian music later associated with Mozart in error. Given the total absence of surviving notation and provenance, the item is best treated today as a lost work of doubtful authenticity rather than secure evidence for Mozart’s late style.
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Musical Content
No musical text survives for K. 626b/01, and no reliable description of its notation (themes, scoring indications, harmonic plan, or even a key) is available in accessible reference listings [1]. Accordingly, nothing concrete can be said about its musical character or its relationship to the Requiem beyond the (uncertain) association implied by its grouping among Requiem-adjacent sketches and fragments in modern cataloguing [1].
[1] Wikipedia — Köchel catalogue entry list showing “626b/01 Four sketch leaves (lost)” among K. 626b items.