Exercise # 9 from Beyer op.101 is a piece for four hands, as the previous. It is a three-four rather quick time (allegretto), the typical waltz time. The left hand won’t have so much things to do if not playing G, with notes from one up to three movements.
On the contrary, the right hand will move freely among C, D, E, G notes, having the only intricacy in a note in two movements and another one in one movement during some bars. In the beginning not to make mistakes will be very difficult.
In my opinion, this exercise doesn’t show any other difficulty. In any case, I suggest you to try to mark your difficulties submitting a post.