Ludwig van Beethoven's String Quartet No. 11 in F minor, Op. 95, from 1810, was his last before his late string quartets. It is commonly referred to as the "Serioso," stemming from his title "Quartett
Sketches for the Scherzo and Finale of String Quartet No. 11, from Beethoven's sketchbook of 1810–1811
Sonata form
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The sonata form is a musical structure generally consisting of three main sections: an exposition, a development, and a recapitulation. It has been used widely since the middle of the 18th century.
String Quartet No. 11 (Beethoven)
…Larghetto espressivo, 2 4 – Allegretto agitato, 6 8 – Allegro, , F minor – F major This movement is in sonata form. 1st tonal area, F minor (bars 1–21): Neapolitan (G♭ chord) important (bar 6, 19); the Neapolitan appears in root position, not its normal first…
Haydn as portrayed by John Hoppner in England in 1791
The opening of Mozart's "Dissonance" Quartet, K. 465, which begins with an introduction
Watercolour of Franz Schubert, who is known for using three-key expositions