"These," Katie began. glancing at him warily, "are keys, on a piano. See?" She played a quick, easy melody.
"Wouldn't it be easier to call them buttons? When someone says keys I think of keys, as in to unlock a door." He pressed a random 'button', unfamiliar with the Muggle contraption Katie was introducing him to.
"No," she huffed, "keys. They're called keys. Different keys, different notes. Buttons refer to a button on a shirt, persay."
"Oh," he replied. "Buttons can mean two things, though; that, and something you press down to make something else happen. You press down that to make a noise. It can be a button."
Katie made a noise of impatience. "Go ahead, call it a button, but it's actually a key."
Written for the Alphabet Soup Drabble Challenge. Letter K, keys.
Word Count: 128