it's granddaughter's (2.5yo) favorite song. it would be an embarrassment if I couldn't recognize it even upside down ;-)
it got me thinking that it could enable children to read and even write music. a long-ago friend, from my days of amateur singer, once told me she had learned to read music long before she could read words, and this notation you came up with seemed quite intuitive and fun to me. I wonder if the intuitiveness is just because of some background we share...
I am also curious as to how well it would work for the blind. I feel tempted to try to describe the image, but it also seems quite intimidating and challenging to come up with something that could convey enough of the notation to enable a blind person to imagine trying to read that with fingers, and share an opinion on whether that could work