Piano cum Pillow

Ibu bought a toy for Zafran. It's Kick and Play Piano from Fisher Price. But  Zafran seems still cannot understand the function of the toy even ibu taught many times. Zafran is unable to understand that a sound will be produce once the key is touch. At the end, the function of the piano is change to a pillow. Oh my little sweet darling Zafran... so comfortable lying down on the new pillow and sucking his thumb.