Parents need to know that this game teaches kids how to play the piano keyboard. It also uses the video game motif to teach them how to read music. The game is best used as an intro to music education. A child who is serious about pursuing music shouldn't use it as a substitute for professional instruction.
I'm only fourteen years old, but I know a little something about music. I know that the best way to get someone into an insturment (guitar, piano, whatever) is to get them on it. If your kid is interested in piano, use someone else's piano, don't get them this, because it's nothing like the real thing.