“Chi sà, chi sà, qual sia” (K. 582): Mozart’s Soprano Insertion Aria in C major
av Wolfgang Amadeus Mozart
“Chi sà, chi sà, qual sia” (K. 582) is a concert-style insertion aria for soprano and orchestra, completed in Vienna in October 1789 and first performed at the Burgtheater on 9 November 1789 [1]. Written for the character Lucilla in Vicente Martín y Soler’s Il burbero di buon cuore, it shows Mozart at age 33 refining operatic expression on a miniature scale—especially through an unusually characterful wind ensemble led by clarinets [1].
Background and Context
In 1789 Mozart was in a complicated professional moment: still Vienna’s pre-eminent operatic composer, yet increasingly dependent on occasional commissions, benefit concerts, and practical theatre work. One such task was the writing of insertion arias (Einlagearien)—new numbers slipped into revivals of existing operas to suit a particular singer, refresh a scene, or answer shifting tastes.
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“Chi sà, chi sà, qual sia” (C major, K. 582) belongs to this world. The Köchel-Verzeichnis identifies it as an aria for the character Madama Lucilla (soprano), completed in Vienna in October 1789, and performed at the Burgtheater on 9 November 1789 [1]. It was composed for a revival of Vicente Martín y Soler’s Il burbero di buon cuore (libretto by Lorenzo Da Ponte)—an opera first staged at the same theatre in 1786 [4]. Alongside its companion piece “Vado, ma dove? oh dèi!” (K. 583), K. 582 reveals Mozart’s uncanny ability to enter another composer’s drama, then immediately make the stage sound unmistakably like his own [1].
What makes the aria especially worth attention today is precisely this hybrid identity. It is “minor” only in scale: a single movement of roughly three minutes, yet fashioned with the same dramaturgical care Mozart brought to his major operas—compressed into an intense, scene-stealing cameo [2].
Text and Composition
The text is by Lorenzo Da Ponte [1], and the aria is placed within Martín y Soler’s opera as an act I addition (often identified with Act I, scene 14 in modern discussion) [3]. In other words, Mozart is not merely supplying a detachable “concert aria,” but intervening at a specific dramatic hinge—replacing what had previously been simple recitative with a set-piece that invites psychological focus [3].
The scoring is distinctive for its time and for this genre of add-on theatre number:
- Winds: 2 clarinets, 2 bassoons
- Brass: 2 horns
- Strings: violins I & II, viola, cello & double bass
- Voice: soprano (Lucilla)
This is the instrumentation given both by the International Mozarteum Foundation’s catalogue entry and by the IMSLP work page (which specifies clarinets and horns in C) [1] [2]. Notably, the clarinets are not mere harmonic padding: they are central expressive agents, a hallmark of Mozart’s late-1780s operatic palette.
Musical Character
Although compact, K. 582 has the profile of a true operatic soliloquy: Lucilla’s uncertainty (“Who knows…”) is mirrored in Mozart’s quick alternation between lyrical containment and more searching, speech-like gestures. The aria’s most personal signature lies in its wind writing, especially the clarinets. A recent Cambridge study of Mozart’s operatic use of the clarinet points out that both K. 582 and K. 583 “rely on skilful soloistic clarinets,” and that by calling for such writing Mozart effectively “set his own stamp” on Martín y Soler’s sound world [3].
For listeners familiar with Le nozze di Figaro (1786) or Così fan tutte (1790), this timbre is immediately suggestive: the clarinet pair can imply warmth, tenderness, and a kind of private candour—qualities that suit a moment of anxious reflection rather than public display. That Mozart achieves this within the constraints of an insertion aria is precisely why the piece deserves a place beside his better-known concert arias: it is a small but vivid example of his late style, where orchestral color becomes dramaturgy, and a brief number can reshape an entire scene.
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[1] International Mozarteum Foundation (Köchel-Verzeichnis): KV 582 work entry with dating, first performance (Burgtheater, 9 Nov 1789), scoring, and Da Ponte/Martín y Soler context.
[2] IMSLP work page: general info (year, duration) and instrumentation details for K. 582.
[3] Cambridge University Press (PDF): discussion of K. 582 as an insertion aria in *Il burbero di buon cuore* and its clarinet writing.
[4] Wikipedia: *Il burbero di buon cuore* overview and note on Mozart’s two added arias (K. 582 and K. 583) for the 1789 Burgtheater revival.