String quartets

I listed some string quartets I like.

String Quartet No. 1 in D major, Op. 11 - by Tchaikovsky
String Quartet No. 2 in F major, Op. 22 - by Tchaikovsky
String Quartet No. 3 in E flat minor, Op. 30 - by Tchaikovsky
String Quartet No. 6 in A minor, Op. 12 - by Dvořák
String Quartet No. 12 in F major, Op. 96 "American" - by Dvořák