I have a feeling that you're being sarcastic, but there is an argument to be made here. Mozart's piano work is more the perfection of the diatonic Classical form, rather than anything fresh or new for the time. I mean, I appreciate the incredible craft of something like his Sonata in B Flat, but it seems very tame against, say, Beethoven's Waldstein or Apassionata Sonatas.
I assure you I'm not sarcastic, that's why I precised the piano (I play), and I remember after seeing "Amadeus" as a child and starting music, he was like that God you slowly realize he is really not what you thought compared to many others in the area you studied ^^.
I also think Liszt is overrated, but that is a more complex argument lol...
I have the feeling that while definitely an excellent composer, a huge part of his reputation came from his father, who was obsessed with his kid's career. The kid supposedly composed 5 or so menuetts at age 3 or 4.... ok but wasn't his dad there to give a little hand and say "hey little Wolfy, why don't you put a G instead of a D there? wouldn't it sound better?".
speaking specifically about his piano output, it's simple in his presentation but there's lots of beauty in his works.
I prefer his concerti to his Sonatas, I feel like his ideas shine a lot more when more instruments were around.
it's probably one the hardest composer to pull off though. all those piano competitors playing the Islameys and the Gaspard de la Nuits would never ever pass a round if it depended on them playing Mozart like it should be played. Most people lack the sound culture for it.
EDIT: oh and the older I get the shittier gets Liszt music in my ears, I have pieces from him I like, like the mephisto waltz, but c´mon most pieces are some virtuoso Yirumi/Clayderman turds
