How about a twisted ribbon block with the colors of the piano keys? I tried one and messed it up. Realize now what I did and could audition another one. Thought that would pick up the colors or just forget about it? Like the idea of a border between the ribbon and the quilt as well as the idea of blocks to the top and bottom. Keep the ideas coming, please. I am not there yet! Like the idea of scallops as that would look pretty and feminine. Just finished binding a quilt with scallops. Not too bad an experience. I think a curling ribbon might look better???