String Quartet in C minor,op.51 no.1 String Quartet in C minor,op.51 No.1 String Quartet in A minor,op.51 no.2 String Quartet in C minor, Op.51 No.1 String Quartet in G minor, op 54 no.1 String quartet in C major, op.59 no.3 String Quartet no.1 in C minor,op.51 no.1 String quartet in F minor, op.95 String Quartet no.2 in A minor,op.51 no.2 string quartet in c sharp minor,op.131