The Sixth Finger
Finally, it has appeared, the famous sixth finger that very few people on planet earth have had. This baby has grown an extra finger that can function normally like the rest of her hand. So at this point, it should be a no-brainer to assume that the child will be an amazing piano player someday.
The baby could grow up to be so good that it could write its own piano music that only people with eleven fingers could play. The image of being the only person in the world to be able to play a piece of music because you have an extra finger? That would really give Mozart a run for his money.