K. Anh.C 6.01

Die Liebesprobe (K. Anh.C 6.01) — a doubtful Viennese comedy project

di Wolfgang Amadeus Mozart

Unfinished portrait of Mozart by Lange, 1782-83
Mozart, unfinished portrait by Joseph Lange, c. 1782–83

Mozart’s Die Liebesprobe (K. Anh.C 6.01) is a shadowy entry connected with Vienna in 1787, when the 31-year-old composer was at the height of his theatrical powers. What survives suggests not a finished comic opera in the usual sense, but material associated with a ballet-pantomime/pasticcio tradition that recycled existing numbers.

Background and Context

K. Anh.C 6.01 is associated in modern cataloguing with a Viennese theatrical environment of 1787, a year when Mozart was immersed in stage work and closely connected with the city’s practical theatre life (revivals, adaptations, and functional occasional pieces alongside his major projects). The title Die Rekrutierung oder Die Liebesprobe is transmitted not as a securely documented premiere-able Singspiel, but in a form that points toward dance-theatre: a ballet-divertissement or pantomime assembled from pre-existing music rather than newly composed, continuous dramatic score.[1]

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In that sense, the work sits at the margins of what one usually means by “a Mozart opera.” Instead of a unified collaboration with a librettist and a complete vocal score, the evidence aligns better with the Viennese appetite for flexible stage entertainments—music tailored, borrowed, and rearranged to suit a given evening and a given ensemble, sometimes with only the most limited authorial footprint traceable to Mozart himself.[1]

What Survives

What can be described with confidence is not an opera text and not a set of finished arias, but a strand of surviving instrumental numbers linked to the title. In the Mozarteum’s thematic catalogue, at least one item “belonging to” Die Rekrutierung oder Die Liebesprobe is a March in D major, scored for a compact late-18th-century theatre orchestra: piccolo, 2 oboes, 2 bassoons, 2 clarini (trumpets), timpani, and strings.[2]

As surviving “page content,” that is telling. A march is functional stage music—useful for entrances, ceremonial movement, or scene transitions—and its instrumentation (notably trumpets and timpani) projects a public, quasi-military brilliance consistent with the recruiting (Rekrutierung) theme implied by the title.[2]

Scholarly Context

Current reference descriptions treat Die Rekrutierung oder Die Liebesprobe as a pasticcio—an assemblage rather than a single-author composition—placing it among doubtful or composite items attached to Mozart’s name.[1] The result is that Die Liebesprobe is best understood not as a missing “unknown opera” from Mozart’s mature Viennese period, but as a problematic theatrical label under which some music (at least in part by Mozart, at least in part possibly arranged or borrowed) circulated for performance use.

Even so, its proximity in date to Mozart’s peak comic-theatrical years helps explain why such a title could attach itself to his orbit: Vienna in the late 1780s rewarded composers who could supply vivid, immediately effective theatre music—whether for a masterpiece of character and ensemble, or for the brisk, processional utility of a march.[2]

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[1] International Mozarteum Foundation, Köchel Verzeichnis entry for KV Anh. C 6.01: Die Rekrutierung oder Die Liebesprobe (classified as a ballet-pantomime/pasticcio).

[2] International Mozarteum Foundation, Köchel Verzeichnis entry KV 603/01 (March in D major) listed as belonging to Zwei Kontretänze / ballet-divertissement Die Rekrutierung oder Die Liebesprobe; includes instrumentation details.