String Quartets: Op. 50 "Prussian", nos. 4–6
Album by Joseph Haydn & Kodály Quartet
String Quartets Op. 50, nos. 4–6 are a set of string quartets by Austrian composer Joseph Haydn, composed in 1787. They display Classical-era chamber music traits, characterised by clear textures, inventive motivic development and conversational interplay among the four instruments, and they mark a key stage in Haydn's evolution of the string quartet during his mature middle-period output.
First released: November 1998

Tracklist
- 1.String Quartet in F-sharp minor, op. 50 no. 4: I. Allegro spirituoso6:01
- 2.String Quartet in F-sharp minor, op. 50 no. 4: II. Andante6:02
- 3.String Quartet in F-sharp minor, op. 50 no. 4: III. Menuetto: Poco allegretto3:43
- 4.String Quartet in F-sharp minor, op. 50 no. 4: IV. Finale: Fuga: Allegro moderato2:33
- 5.String Quartet in F major, op. 50 no. 5: I. Allegro moderato4:52
- 6.String Quartet in F major, op. 50 no. 5: II. Poco adagio3:26
- 7.String Quartet in F major, op. 50 no. 5: III. Menuetto: Allegretto4:16
- 8.String Quartet in F major, op. 50 no. 5: IV. Finale: Vivace4:38
- 9.String Quartet in D major, op. 50 no. 6: I. Allegro6:29
- 10.String Quartet in D major, op. 50 no. 6: II. Poco adagio6:06
- 11.String Quartet in D major, op. 50 no. 6: III. Menuetto: Allegretto5:04
- 12.String Quartet in D major, op. 50 no. 6: IV. Finale: Allegro con spirito5:32