Good!
I love the piano and string duo, however, I do not like the rips (where you use extremely fast notes) because it sounds like an inharmony in those spots. I like it, but I think it is too short. Also, I didn't really get a sad feeling from this. Was I supposed to or not, because it is confusing me. : /
Also, I read your PM, but I didn't get to respond to it, sorry, I'm using the school's wireless network and even though it doesn't block NG, for somereason, I can't send PM's. I was going to reply though.
Good song =D