At what age should i start my little girl in piano lesson? She already show some interest, she is 19 months old and can sit for a hour or more at our family piano and play with the keys. she will also sit and strum on a guitar for a bit too, but she show much more interest in the piano. She has been siting on the bench or with me playing with the keys since she was a year or less.Did you like this? If so, please bookmark it, RSS feed.