Harp, Zither, Koto
Two kings are here right now! We need to entertain them otherwise who knows what they'll do. Get out the harp, or the zither, or something.
Imagine yourself playing a harp or a zither, even if you don't know how. Entertain these kings to the best of your ability, right now. That's why you're doing it and not someone who knows what they're doing. They want it now.
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こと
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You may already know that a Japanese harp is called a こと, but here's a mnemonic to help you if you don't: When playing your harp, you always wear your coat (こと).
Your harp playing is pretty bad, so you put your coat on just in case you need to leave in a hurry to escape an angry audience.