Szymanowski's Sonata no. 3 has been one of my favourite pieces for the piano for a while. Like all other Szymanowski pieces, it is complex and sophisticated piece. I have tried to search for an extract on the internet, but couldn't. In the meantime, I found a handy list of links for classical music online (check it here).
Not having the Sonata no. 3 to share for now, I can ony leave Narcisse.