The other morning, I played a Tanglewood performance by Lang Lang of Mily Balakirev's "Islamey."
It reminded me of some pianist friends saying it is the hardest piece written for the piano.
Only to be countered by a few other friends who said that wasn't right. That it's actually "Ondine" from Maurice Ravel's 'Gaspard de la Nuit.'
Well, which is it?
And, I wonder if we should we care about what is the "hardest" piece since music is about more than just technique...