String Quartet No. 19 (Mozart)

• 1. Dedication And Creation History

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  Wolfgang Amadeus Mozart completed the String Quartet No. 19 in C major, K. 465, on the 14th of January 1785. This work marked the final entry in a set of six quartets he composed between 1782 and 1785 for Joseph Haydn. The composer began working on these pieces early in the preceding year without any patron commissioning them. Such personal effort was unusual for his career at that time. In his dedication letter to Haydn, Mozart referred to the quartets as his children being sent out into the great world. He described them as the fruit of a long and laborious endeavour. Unlike his usual practice of writing main voices first and filling in parts later, Mozart composed all four voices simultaneously. He sought to combine Haydn's quartet language with Bach's counterpoint techniques. Artaria & Company announced the publication of all six quartets on the 17th of September 1785 in the Wiener Zeitung. Leopold Mozart noted that the firm paid the composer 100 ducats for the publishing rights. On the 12th of February, Mozart and his father performed this string quartet along with two others for Haydn. Anton and Bartholomäus Tinti most likely played the other parts in the ensemble.

• 2. Musical Structure Analysis

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  The 22-bar Adagio opens with quiet eighth note Cs in the cello. It is joined by the viola on A and the second violin on E. The first violin enters on A, creating the initial dissonance that flummoxed so many listeners. The tension between the A and A serves as a structural feature throughout the entire quartet. This Adagio acts as a thesis statement introducing major ideas Mozart would revisit later. While playing with the quality of the sixth scale degree, Mozart assiduously avoids the third to keep tonality ambiguous. The quartal melodies give rise to whole tone sonorities. The E is only used as a neighboring tone until the first violin plays it on the downbeat of measure 14. When the Allegro begins, the cello remains silent while the viola takes up its eighth note Cs an octave higher. The main theme of the Allegro is constructed on a 2-bar motive beginning on the tonic C. Mozart sequences the motive up to D in the next two bars but leaps to G instead of continuing to E. He withholds the expected E in the sequence until bar 167 well into the recapitulation. In the coda there is a series of 21 consecutive dissonances in just 3 measures. The second movement functions as a sonatina in F major where the violin's dissonant A natural now has pride of place as the mediant scale degree.

• 3. Contemporary Reception And Criticism

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  The string quartet became one of Mozart's most analyzed compositions almost immediately upon publication. The first negative written comment appeared in Magazin der Musik on the 23rd of April 1787. A correspondent wrote from Vienna on January 29 lamenting the waste of Mozart's prodigious keyboard talent on composition. The writer quipped that his new Quartets for 2 violins, viola and bass might be called too highly seasoned. Two years later the same periodical praised Mozart's complexity confirming he had a decided leaning towards difficult and unusual ideas. By 1799 an anecdote from Constanze Mozart was repeated in Allgemeine musikalische Zeitung stating the Italian printer sent engravings back to Artaria because he assumed notes were errors. Giuseppe Sarti met Mozart in Vienna in 1784 and felt he was a good honest fellow. In his analysis of the quartet Sarti called the violin's opening dissonance execrable. He accused the composer of having ears lined with iron. Sarti also analyzed K. 421 concluding the author was nothing more than a piano-forte player with spoiled ears who did not concern himself about counterpoint. The essay was seen as so gratuitous and vindictive it remained effectively embargoed by Bonifazio Asioli until his death in 1832.

• 4. Theoretical Debates And Corrections

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  François-Joseph Fétis analyzed the quartet's introduction in his Revue musicale on the 17th of July 1830. Fétis was certain that the dissonances resulted from printing errors when he tracked down Mozart's manuscript in London. The manuscript was then in possession of J. A. Stumpff. Fétis felt he could solve problems created by Mozart by delaying the first violin's entrance by one beat. Not satisfied with this revision he altered it again by prolonging the second violin's D into the third bar. Both revisions clumsily rewrote Mozart based on rules of imitation Fétis devised in his own theoretical work. Several other writers tried their hand at analyzing or fixing Mozart's introduction including Gottfried Weber, François-Louis Perne, and Raphael-Georg Kiesewetter. Ernest Newman devoted a chapter to the quartet in A Musical Critic's Holiday published in 1925. The convoluted intellectual history of this passage resembles handwringing over Richard Wagner's prelude to Tristan und Isolde. Ironically Mozart's harmony serves as a clear functional predecessor to the famous Tristan chord. Heinrich Schenker discussed the piece in 1906 when it was commonly referred to as the Dissonance quartet.

• 5. Legacy And Modern Interpretation

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  The String Quartet No. 19 evolved from a misunderstood novelty to a cornerstone of chamber music repertoire. Early critics like Giuseppe Sarti dismissed its complex counterpoint as evidence of spoiled ears. Later generations recognized the forward-looking nature of its harmonic language. The work remains one of Mozart's most analyzed compositions today. Its unusual counterpoint in the slow introduction continues to challenge performers and listeners alike. Modern recordings by groups such as the Léner String Quartet and Guilet String Quartet demonstrate enduring interest. The piece stands as a testament to Mozart's willingness to deviate from conventional expectations. It bridges classical traditions with emerging romantic sensibilities through its bold structural choices. Scholars continue to debate whether perceived errors were intentional innovations or genuine mistakes. The legacy of K. 465 proves that what once seemed execrable can become revered masterwork over time.