Any suggestions for good four-hand piano repertoire? My friend and I are competent pianists, so we should be able to handle pretty much anything in the repertoire.
I'm familiar with the Schubert F minor Fantasy, which I ADORE (!!!!), but it's a bit looooong...
I haven't looked into the Mozart sonatas, but I've heard of them, so I'll check those out.
And I know about Brahms and Dvorak; but haven't listened to them in a while.
So any specific recommendations, either from what I've mentioned above, or something else? Also, preferably nothing modern (unless it's absolutely ridiculously amazing!

).
Basically, I'm looking for something that can make an impression, relatively challenging, and also good quality music.