Probably sending off those Nigerian emails, trying to sucker some other losers...
Watch when the "prodigy" takes his breaths; amazingly, the music just keeps on coming. The piano keeps rolling on, but there are at least three places where the lad's mouth is open and gasping for air, while the notes continue to pour out.
Nice finger waving, perhaps, but someone else is kicking out the sound. There is also something odd about how the recorder sounds; you can account for the piano being where it is, but the sound from the recorder seems to come from "somewhere else".
It's not too hard to fake something like this, only you have to wonder what the original reason was for doing it.