Stravinsky: The Rite of Spring
Original version as done for duo pianos. Performed by:
Marc-André Hamelin (piano), Leif Ove Andsnes (piano)
You barely miss the orchestration at all in the first published version of The Rite for piano four-hands (as played by Stravinsky and Debussy in the summer of 1912), thanks to the marvellous range of colors created at the keyboard by Andsnes and Hamelin, and the clarity which they bring to even the most thickly-textured passages is a revelation.
Here is Rite of Spring for piano 4-hands: