3.in C sharp minor, Op. 27 No.1 No.7 in C sharp minor, op.27 no.1 C sharp minor, op.27 no.1 Etude in C sharp minor, op. 2 no. 1 3.in C sharp minor,Op.63 No.3 No.7 in c shap minop,op.27 no.1 No.14 in c sharp minor op.27 No.2 Etude in C sharp minor, op. 2 No. 1 No.14 in F sharp minor, op.48 no.2 Etude in C sharp minor, op. 10 no. 4