As a "cultural exchange", in the British & Australian military services the bugle call played at both the end of the day and at military funerals (and on Anzac Day, our version of Memorial Day) is
The Last Post. When played at funerals or on Anzac Day, it signifies that a soldier has "gone to his final rest".
I've never served in the military nor has anyone close to me, but I can't hear it without it bringing tears to my eyes.