MY GOD WHAT ARE YOU GUYS TALKING ABOUT!!!!
How can you say that you "don't get" Prokofieff and prefer Tchaikovsky and GRIEG!!!!!!!!!!
Grieg is such a laughably second rate composer that I wonder that anyone ever bothers playing his music. In fact they don't, only the piano concerto which people only play because its very popular. You can't seriously think that its a good piece!!
Prokofieff has absolute mastery of piano writing. However difficult the pianism gets the music always remains playable. The music itself is absolute genius. Just listen to the fifth and second piano concertos, the toccata, 6, 7, 8, piano sonatas the list goes on.
Ligeti is another genius. Unfortunately the piano etudes do not reflect this particularly well. Listen to Atmospheres, Aventures, Nouvelles Aventures, Le grand Macabre, Ramifications. Ligeti's music transcends the rules of melody and harmony. It is about effect and sound world. Melody does exist but not used in the conventional ways.
Sorabji is a tricky one. I love it as I used to study under Yonty Solomon who is a Sorabji nut. Sorabji used to compose at a table in the British Library and not use a keyboard which is why some of his pieces are v. difficult. Have a look at the score of Opus Clavicumbistitititititcum for interest and listen to Le jardin parfumee, which is a great piece.