Note to file. Are Korean Chisenboppers more likely to figure piano keying or calculate earned income from picking pockets? I see math and manual dexterity in both. One's bad the other's not. Start measuring the fingers!
What is the meaning if the piano player likes to "choke up" on the white piano keys (i.e. press them well in between the black keys, close to the backboard). I do this, and I never noticed it was distinctive until someone commented to me about it. Due to leverage, the keys require more force to press back there, but that's what I like.