My First Music Book: Piano (Sound Book): With 6 of the best-loved children's songs to learn (1) Board book – October 3, 2017

I am doing a music unit in my preschool. I got this to help the children learn how to play songs using the color coded system. My seven 4-year-olds are able to play the songs in it! The only reason for a "4" is that there is one white button above the notes that plays all the songs by itself, with no way to turn it off until all the songs play. When it does this, the child can no longer play the piano. It is also VERY annoying! So I introduced it to the children and said they can play with it, but if anyone pushes the white button, I will know because I will suddenly hear very annoying music and I will put it up and no one will be able to play with it. Surprisingly, none of the children has pushed the white button and everyone can still play it. No one wants me to put it up. It would be a great toy if they would figure out how to avoid installing the white button.