Clash Royale TV Commercial, 'The Prince'

A trumpet player enlightens us regarding the rules of "a most ridiculous duel" in Clash Royale. He explains that a trumpet must sound when the prince charges into battle, or when he does anything else, for that matter. The prince make a trumpet noise as he clips his nails, does sit-ups and polishes his armor, but when his opponent defeats him in one punch, it's his horse that sings the final notes.