String quartets

I listed some string quartets I like.

Four Pieces for String Quartet, Op 81 - by Mendelssohn
String Quartet No. 14 in D minor, D. 810 "Death and the Maiden" - by Schubert
String Quartet No. 15 in G major, D. 887 - by Schubert
String Quartets Nos. 1-6, Op. 33 "Russian" - by Haydn
String Quartets Nos. 1-6, Op. 76 "Erdody" - by Haydn