The Talking Piano

"Do-Re-Mi-Fa-Mi-Re-Do"
The "Frog Song" my four-year-old daughter plays has a cheerful sound. It is likely thanks to the "praise" button installed on the electronic piano. Even if she doesn't play well, it praises her for what she does right.
Like, "Your rhythm is wonderful! Let's try playing while watching your fingers closely."
My daughter has stopped giving up halfway through even when she makes a mistake.
Other options such as "encouragement" and "pointing out mistakes" can also be added.
This was a welcome feature for parents as well. As the difficulty level increases, unless you are an experienced pianist, it becomes hard to offer advice without making things worse. It is said that because of the sense of trust built from a young age, children come to listen to the piano's voice.
One day, the piano manufacturer requested a maintenance check due to a malfunction. Apparently, one of the students had downloaded an option called "Lover" from the internet and had stopped eating and drinking, unable to pull themselves away from the piano. Suddenly, I looked at my daughter and saw her rubbing her cheek against the piano.