17 Well-Known Original Piees in Progressive Order of Difficulty. Contents: Waltz in A minor, KK IVb, No. 11 Waltz in B minor, Op. Post. 69, No. 2 Waltz in C-sharp minor, Op. 64, No. Prelude in C, No. 6 Prelude in E minor, Op. 28, No. Prelude in E Major, Op. 28, No. 9 Prelude in D-flat Major, Op. 28, No. 15 "Raindrop" Mazurka in A minor, Op. Post. 68, No. 2 Mazurka in B-flat Major, , No. 1 Mazurka in G minor, Op., No. Mazurka in , No. 2 Nocturne in G minor,, No. 2 Funeral March from Sonata No. in B-flat minor, Op. 5 Polonaise in C-sharp minor,Op. 26, No. 1.