Symphony No. 34 in C major, K. 338
de Wolfgang Amadeus Mozart
Mozart’s Symphony No. 34 in C major, K. 338 was completed in Salzburg on 29 August 1780, when the composer was 24. With its brilliant “trumpet-and-drum” sonority and unusually weighty slow movement, it stands at the threshold between the ceremonial Salzburg symphony and the more searching orchestral style Mozart would soon cultivate in Vienna.
Background and Context
Mozart’s final Salzburg symphony occupies a paradoxical place in his biography: outwardly festive, even courtly, yet written at a moment when court life had become professionally constricting. In 1780 he was still employed by Prince-Archbishop Hieronymus von Colloredo, producing church music and occasional instrumental works on demand, while quietly seeking a broader stage for his ambitions. In that setting, a C‑major symphony with trumpets and timpani had a clear local function—music for court concerts and ceremonial display—yet K. 338 often feels less like routine “occasional” output than a deliberate summation of what Mozart could do with Salzburg’s orchestral resources.
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One Salzburg-specific detail helps explain both the work’s brightness and its practical flexibility: at Colloredo’s court, the same players commonly alternated between oboes and flutes, and scores sometimes reflect this by avoiding simultaneous use of the two instruments. The Mozarteum’s catalogue notes this as a broader feature of Mozart’s Salzburg symphonies, a reminder that what later generations hear as “orchestration choices” could also be solutions tailored to a particular roster of musicians [1].
Composition and Premiere
The work is precisely dated: Mozart completed the symphony in Salzburg on 29 August 1780 [1]. That date is more than a cataloguing nicety; it anchors K. 338 in a late-summer moment just before Mozart’s life tilted decisively toward Munich (Idomeneo) and then Vienna. The symphony thus sits between two worlds: Salzburg’s ceremonial Classicism and the more public, entrepreneurial concert culture Mozart hoped to master.
Documentation of early performances is less tidy than the autograph date. The BIS booklet for Symphonies 34–36 suggests that the symphony “almost certainly” received an early Salzburg performance at the Archbishop’s court shortly after its completion [2]. Yet the same booklet (and other modern accounts) emphasize how Mozart continued to treat the piece as usable capital after leaving Salzburg. Particularly revealing is the survival of manuscript orchestral parts from 1786 containing corrections in Mozart’s hand—evidence that K. 338 was still being actively curated and “kept performance-ready” well into the Vienna years [2].
Those 1786 materials connect the symphony to a pragmatic episode: Mozart sent works to Prince von Fürstenberg at Donaueschingen as samples of his versatility, apparently with an eye to possible employment [2]. The implication is instructive. K. 338 was not merely “an old Salzburg symphony” Mozart left behind; it was a portfolio piece, sufficiently polished—and sufficiently impressive in sonority—to represent him in negotiations with a potential patron.
A further layer of intrigue lies in what K. 338 does not securely preserve. Sources agree that Mozart originally planned a minuet after the first movement, but abandoned it almost immediately; the BIS booklet reports that he broke off after 14 bars and replaced the idea with an Andante [2]. The fragment’s very existence is a miniature “work-in-progress” snapshot: Mozart, in the act of deciding that the expected four-movement courtly symphony needed a different interior architecture.
Instrumentation
K. 338 is scored for a full Salzburg festive orchestra, exactly the kind that could turn a court concert into a public assertion of splendor:
- Winds: 2 oboes, 2 bassoons
- Brass: 2 horns, 2 trumpets
- Percussion: timpani
- Strings: violins I & II, violas, cellos & double basses
This instrumentation is given in the Mozarteum’s Köchel catalogue entry [1]. Two points are worth stressing for listeners accustomed to later “standard” symphonic scoring. First, the trumpets and timpani are not merely decorative—they define the symphony’s public profile, framing the outer movements with a brilliance Salzburg audiences would have associated with ceremony and high occasion. Second, the woodwinds are used in a way that hints at Mozart’s growing interest in concertante textures: not simply doubling strings, but taking on a more individualized, color-bearing role (a tendency that becomes increasingly explicit in the finale).
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Form and Musical Character
K. 338 is most often heard in three movements (Adagio — Allegro vivace, Andante di molto, Presto), and the three-movement profile is not an accident of transmission but a compositional decision: Mozart appears to have rejected the minuet early and built a more substantial slow movement in its place [2]. The result is a symphony whose center of gravity can feel unusually concentrated in the Andante—a movement that, in performance, often determines whether the work registers as merely “festive” or as genuinely expansive.
I. Adagio — Allegro vivace (C major)
The slow introduction is not long, but it is strongly characterized: a ceremonial threshold that makes the ensuing Allegro sound like release rather than simple continuation. Modern commentary has noted that the opening’s fanfare-like gestures anticipate similar rhetorical signals in later Mozart works (even in theatrical contexts), suggesting that Mozart was internalizing a vocabulary of “public” openings that could travel between symphony, overture, and opera-house expectation [2].
Formally the movement is in sonata-allegro form, and one striking feature (for historically informed listeners) is how Mozart balances symphonic momentum against the expectation of repeats. The BIS booklet points out that the movement’s Allegro—originally headed simply Allegro but later adjusted to Allegro vivace—proceeds in sonata form without a repeat of the opening section [2]. That detail shapes interpretation: conductors who treat the movement as “overture-like” often lean into forward drive, while others emphasize the architectural weight of the introduction and the harmonic planning that follows.
II. Andante di molto (F major)
If the first movement projects ceremony, the slow movement is where Mozart complicates the picture. The tempo marking (Andante di molto) is already a clue: not merely “walking,” but insistently so—an instruction that can push performers away from sentimental broadness toward a more flowing, articulated lyricism. Orchestrationally, the BIS booklet highlights the use of divided violas (divisi) as a coloristic detail in the movement’s texture [2]. In practical terms, this can produce a darker inner glow than one expects from a “trumpet symphony” in C major.
Interpretively, the debate tends to center on balance and rhetoric. Should the movement be treated as intimate counterweight—almost chamber-like within a public symphony—or as the expressive “slow core” that justifies the work’s three-movement form? The existence of the abandoned minuet fragment makes this question more than aesthetic: Mozart seems to have decided that a conventional dance movement was not the right internal complement to his outer movements, and he instead invests the symphony’s interior with sustained lyric argument [2].
III. Presto (C major)
The finale is often described (aptly) as a whirlwind, but its virtuosity is not only a matter of speed. The BIS commentary calls it a “quickfire gigue” in sonata form with both sections repeated, and it notes the soloistic prominence of the oboes, foreshadowing Mozart’s later, more overtly concertante handling of the woodwinds in the great symphonies of the 1780s [2]. In other words, even at its most extrovert, the movement is not just a display of C‑major brilliance; it is also a study in agile timbral conversation.
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This is where K. 338 most clearly transcends the stereotype of the “Salzburg festive symphony.” The trumpets and timpani still crown the rhetoric, but the woodwinds’ animated participation can make the texture feel less like a hierarchy (melody over accompaniment) and more like a busy civic scene: a public celebration with many voices.
Reception and Legacy
K. 338’s legacy is shaped as much by Mozart’s own afterlife-management as by nineteenth-century canon-building. The survival of corrected parts from 1786 and the Donaueschingen connection suggest that Mozart himself regarded the symphony as durable and representative—something he could resurface in new contexts rather than discard as “old Salzburg work” [2]. That self-curation matters: it helps explain why the piece has remained so performable across changing orchestral cultures, from Classical-sized ensembles to modern symphony orchestras and period-instrument groups.
In modern performance, the work’s interpretive interest often crystallizes around two related questions. First: how “ceremonial” should the rhetoric be—are the opening and outer movements treated as courtly brilliance, or as symphonic argument with theatrical sharpness? Second: how should the Andante di molto be paced and weighted, given that it effectively replaces the expected minuet and must carry the symphony’s interior depth? These are not merely matters of taste; they are consequences of Mozart’s compositional decision to reshape the genre’s internal proportions in this particular work.
As a result, Symphony No. 34 has become a favorite test piece for conductors intent on demonstrating that Salzburg Mozart is not only charming and “galant,” but already strategically modern: revising forms, rethinking movement functions, and writing orchestral music that could serve both as court entertainment and as professional calling card beyond Salzburg [2].
[1] Mozarteum (Köchel Catalogue) entry for KV 338: dating (Salzburg, 29 Aug 1780) and instrumentation.
[2] BIS booklet PDF “Symphonies 34–36” (eClassical): completion date, minuet fragment abandoned after 14 bars, Salzburg court performance likelihood, 1786 parts with Mozart corrections, Donaueschingen/Prince von Fürstenberg connection, and movement/form notes.