In March of 1908, 27-year-old Johanna Senfter went “on a pilgrimage” to visit Max Reger in Leipzig. Having studied piano and violin at the Hoch Conservatory in Frankfurt am Main, she now wanted to learn composition. Reger, only six years her elder, had been in charge of a masterclass for musical composition at Leipzig Royal Conservatory for only a year.

Boredom (in German: “long whiling”) is apparently what drove Wolfgang to compose one of his string quartets at the inn at Bolzano. And yes, he was doing well, as father Leopold assured Mozart’s mother in a letter dated 28 October 1772. How can we even imagine what boredom must have felt like for a 16-year-old genius? Was he sitting lackadaisically at the table with his father, scribbling counterpoint on paper and casually inventing the genre of Classical string quartet in passing? Or was Wolfgang just solving musical-logical Sudokus, as we all tend to do in such cases?

Dissonance Quartet – the name already contains the thrill of transgression. But a dissonance, in which the parts momentarily diverge from triadic harmony, is the necessary condition to achieve an aesthetic of four-part conflict, such as was sought after in the genre of classical string quartet. Mozart’s work in C Major with the “dissonance” epithet is the highlight of a group of six quartets in which he responded to the music of his colleague Joseph Haydn and the latter’s concept of discursive thematic work in a four-part texture.