The reason is the spatial relationships of the music improves mathematical abilities !
https://open.spotify.com/album/6rC8rUFgII0JIIKGFjhEiB
Why primary colors in baby room ? The bright red , green , yellow and blue stimulate the brain !
https://www.livestrong.com/article/560169-how-to-design-a-nursery-which-would-stimulate-the-intellectual-development-of-a-child/#ixzz2dg0EbFdk
