Lust in C Major

Says Lauren to me in a breathless tone: "Mommy...if you get me a piano, I won't ever play on the computer again!"

This is quite a commitment for her to make, and shows her incredibly deep desire for a piano. 

She has also taken to listening to the radio and saying, "That's a violin," or "That's a piano," or "That's a trumpet." Sometimes she's wrong, but not often. 

So who has a creative way to get the kid time at a piano without actually spending several thousand dollars on an actual piano?