Origami Grand Piano 折り紙 グランドピアノ

I created this video with the YouTube Video Editor () I understand that in a book named Origami 4 by Robin Harbin there’s a baby grand piano designed by Patricia Crawford. I don’t have the book and I am not sure this video is an exact copy of the design but anyway I made it. It is difficult to fold with 15 x 15 cm origami paper. I used 25 x 25 cm paper. 17 x 17 cm will do.