Etude in B-flat minor, op. 8 No. 11 Etude in B-flat minor op. 8-11 Etude in D sharp minor, op. 8 no. 12 Etude in A flat major op. 10 no. 10 Etude in C sharp minor, op. 2 no. 1 Etude in D sharp minor, op. 8 No. 12 Etude in E flat minor op.10 no.6 8.Etude in D sharp minor, op. 8 no. 12 Elegie in E flat minor, op. 3, no. 1 Etude in C minor, op. 10 no. 12