Instrumental Piece in B♭ major (fragment), K. 711
von Wolfgang Amadeus Mozart
Mozart’s Instrumental Piece in B♭ major (K. 711) is a very short surviving sketch from 1787, preserved only as an incomplete fragment. Although it is often filed among the piano pieces, the notation leaves its intended performance context uncertain—perhaps keyboard, perhaps something connected with a dance ensemble.
What Is Known
Only a brief, unfinished fragment of the Instrumental Piece in B♭ major, K. 711 survives, and it is dated to 1787; the place of composition is not securely known.[1] Modern reference practice frequently groups such remnants with Mozart’s miscellaneous keyboard music, yet K. 711 is better understood as a sketch—music begun and then abandoned—than as a complete “character piece” in the later Romantic sense.[2]
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In Mozart’s 31st year (1787), this kind of fragment sits alongside a period of intense, public-facing composition—most famously the work on Don Giovanni, as well as various instrumental and social pieces written for Vienna’s concert and domestic markets.[3]
Musical Content
What can be said musically must remain modest: the surviving page suggests a tonal beginning in B♭ major with the straightforward, practical surface one associates with Mozart’s functional keyboard writing and dance-related materials—clear harmonic direction, regular phrase impulses, and a texture that could plausibly be realized at the keyboard (or reduced there from a small ensemble cue).[2] Because the fragment breaks off before any decisive continuation, its larger form and original purpose (teaching piece, ballroom utility, or a discarded idea for a larger context) cannot be established from the extant notation alone.
[1] Bärenreiter product page: Miscellaneous Works for Piano (context for how fragments and small pieces are often grouped in modern piano collections)
[2] Digital Mozart Edition (Mozarteum): Neue Mozart-Ausgabe online publication search page (documents NMA volumes including sketches/fragments and piano miscellany)
[3] Reference overview: 1787 in classical music (broad context for Mozart’s major projects in 1787, including Don Giovanni)