Impromptu in C sharp minor op.66 no.4 Etude in C sharp minor op. 10 no.4 Etude in C sharp minor op.25 no.7 Etude in G sharp minor op.25 no.6 Mazurka in C sharp minor op.63 no.3 Etude in C sharp minor op. 2 no. 1 Waltz in C sharp minor op.64 no. 2 Etude in C sharp minor Op.10 No.4 No.14 in c sharp minor op.27 No.2 Etude in C sharp minor, op. 10 no. 4