I have started playing a version of the theme from the Tchaikovsky Piano Concerto #1. This is sufficient for me, since I'm not ready to purchase all 80 pages of the original score. This arrangement is hard enough for me, to be sure, with plenty of runs of octaves.
This morning I dug back into my old CDs and found a Red Seal (old) recording of Horowitz playing this concerto with -- I think -- the NY Philharmonic. Sound quality was not too great, but the performance was quite amazing.
How can ANYONE play octaves that fast? Lord, I got dizzy just listening. It was at an IMPOSSIBLE speed. The notes are also crisp and clean, not muddy like some "too fast" renditions. If he had hit "clinkers" you would have heard them.
As a bravura performance of sheer technical mastery, I have not heard it bested.
That concerto is a vehicle for virtuosity, and Horowitz really did an amazing performance.
When Horowitz was at the top of his form, he WAS something!