For you, what are the 5 hardest ever?
- Liszt Transcendental Etude no. 4
- Liszt Transcendental Etude no. 5
- Liszt Transcendental Etude no. 8
- Liszt Transcendental Etude no. 12
- Liszt Don Juan Fantasy
- Liszt Sonata
- Chopin Piano Sonata 2
- Chopin Piano Sonata 3
- Chopin Etude op. 10 no. 1
- Chopin Etude op. 10 no. 2
- Chopin Etude op. 10 no. 4
- Chopin Etude op. 10 no. 10
- Chopin Etude op. 25 no. 6
- Chopin Etude op. 25 no. 10
- Chopin Etude op. 25 no. 11
- Chopin Etude op. 25 no. 12
- Chopin Scherzo 3
- Chopin Scherzo 4
- Chopin Ballade 1
- Chopin Ballade 2
- Chopin Ballade 4
- Chopin Prelude 8
- Chopin Prelude 16
- Chopin Prelude 19
- Chopin Prelude 24
- Beethoven Sonata no. 29 op. 106
- Rachmaninov Sonata 1
- Prokofiev Sonata 8
- Ligeti Etude 1
- Ligeti Etude 13
- Ligeti Etude 14a
- Boulez Sonata 2
- Boulez Sonata 3
- Stravinsky Trois mouvements de Petrouchka
- Ravel - Gaspard de la nuit
- Balakirev - Islamey