hidden4fun: Self Playing Piano free online hidden object game

hidden4fun specializes in free hidden object games that you can play online without having to download anything. hidden4fun is presently having more than 2,000 games under this genre. Other genres are Spot the Difference, Mystery, Shopping, Adventure, Cleaning, Cooking, Romance, Pets etc. The ads on this site are minimal and non-interfering.
Self Playing Piano game link: