I love that.
My mom has an upright piano, I think it might be a Baldwin, but honestly can't remember. It's probably 75 years old or more, as she played as a child and up until arthritis made it more difficult and she always says "I don't want to disturb the cat" or "I don't want to scare the cat" (current cat is blind).
I took lessons for awhile as a kid, but just didn't really get into it, and enjoy it enough to keep up.
Wanna hear a little secret? I kind of had your grandson in mind, as you mentioned one had an interest in music, so I went with more masculine colors, just in case.
It's about 50x60" rough measurement, after attaching the binding; I still need to trim the sides and turn the binding over the edge.