two violins, two violas and cello. Charles Rosen wrote that "by general consent, Mozart's greatest achievement in chamber music is the group of string quintets with two violas." String Quintet No. 1 in B major, K. 174 (1773) String Quintet No. 2 in C minor, K. 406 (516b) – This is a transcription for string quintet of the earlier Serenade for wind octet in C minor, K. 388. (1787) String Quintet No. 3 in C major, K. 515 (1787) String Quintet No. 4 in G minor, K. 516 (1787) String Quintet No. 5 in D major, K. 593 (1790) String Quintet No. 6 in E major, K. 614 (1791) Others String Quintet in B major, K. 514a (fragment; 1787 or later) String Quintet in A minor, K. 515c+515a (fragment; 1791) Other chamber music without piano Flute Quartets (flute, violin, viola, cello): Flute Quartet No. 1 in D major K. 285 (1777–1778) Flute Quartet No. 2 in G major K. 285a (1777–1778) Flute Quartet No. 3 in C major K. Anh. 171/285b (1781–1782) Flute Quartet No. 4 in A major K. 298 (1786–1787) Sonata for Bassoon and Violoncello in B major, K. 292 (1775) Oboe Quartet (oboe, violin, viola, cello) in F major, K. 370 (1781) Horn Quintet (horn, violin, two violas, cello) in E major, K. 407 (1782) Adagio in F major for two basset horns and bassoon, K. 410/484d (1785) Adagio in B major for two clarinets and three basset horns, K. 411/484a (1785) 12 Duets for two horns in C major, K. 487 (1786, incorrectly published as being for basset horns) Clarinet Quintet (clarinet, two violins, viola, cello) in A major, K. 581 (1789) Adagio and Rondo for glass harmonica, flute, oboe, viola and cello, K. 617 (1791) Adagio in C major for Glass Harmonica, K. 356/617a (1791) Adagio in F major for clarinet and three basset horns, K.Anh. 93 Adagio in F major for clarinet and three basset horns, K.Anh. 94 Allegro assai in B major for two clarinets and three horns, K.Anh. 95 Allegro in B major, K.Anh. 96 (for 2 oboes, 2 clarinets, 2 bassoons, and 2 horns) Fragments Andante in B major, K. 384B (fragment; for 2 oboes, 2 clarinets, 2 bassoons, and 2 horns) Allegro in C major for basset horn and ??, K. 484e (fragment; with undetermined instrumentation) Clarinet Quintet fragment in B major, K. 516c/Anh. 91 - Allegro (for clarinet, 2