I thought this was quite difficult musically. The 1st movement of the D664 sonata is very nice.
It is very difficult musically, and it's long, very long.. but when playing the first movement of D 894, one has to feel like the piece is the entire world, you have to be like in a trance and then it is actually just wonderful to play(kind of sightread the piece just a minute ago, which I have done a couple of times)...
But about the 1st movement of D664, have you decided to learn that one?

How is it going? Do you feel like you can manage the big chords?
