String Quartet no.1 in C minor,op.51 no.1 String Quartet No.1 in C minor Op.51 No.1 String Quartet no.2 in A minor,op.51 no.2 String quartets No.1 in F major op.18 No.1 String Quartet in C minor,op.51 no.1 String Quartet in A minor,op.51 no.2 String quartet no. 2 in A minor op. 35 String quarter no.1 in a minor,op.7 String quartet no. 15 in A minor, op. 132 String Quartet in G minor, op 54 no.1