That's Not Even a Tuning Fork

So she's
checking
out her
grandpa
playing
the piano.
I think
I was
playing
something
really
difficult.
Anyway, I play this note and she's like,
"Hey, that high A is a little off."
So I check it with my tuning fork and guess what?
She's right. Now how many 7 month old kids would know that?
And then she goes, "By the way grandpa, that's a kitchen fork."
Genius