> Eighteenth-century customs of war usually did the vanquished the honor of allowing him to march out of his lines to lay down his arms with his flags flying and his band playing a march from the victor's national book of martial melodies. But Clinton (british general) dishonored Lincoln (usa revolutionary general) by requiring the Americans to keep their colors cased and forbidding them to play an English or German air.
so - during the surrender at yorktown - the American's got the british back
>American Brigadier General Henry Knox wrote that day to his wife: "They will have the same honors as the garrison of Charleston; that is they will not be permitted to unfurl their colors or play Yankee Doodle."
The shame of the british not being allowed to play yankee doodle was a dastardly slight. it made the british troops so mad that when they surrendered their arms they threw them on the ground so hard that they attempted to break them as to be inoperable from - Vowell, Lafayette in the somewhat united states.