The Best Piano Works of the 20th Century

Ravel's - Gaspard de la nuit and Debussy' Preludes. Both are post 1900 as are most of these composers music for solo piano. Their music should not be missed. 

I overlooked Prokofiev’s. :-(  FWIW I highly prize Chiu’s 9 CD traversal of all of his music for solo piano including some transcriptions. I also overlooked Rachmaninoff’s 24 Preludes and Sonata #2.