From the calm soothing noise of the violin, vaguely able to bring up images of Gondor's rolling hills in Percy Jackson's movies, clearly representing the relative peaceful time of Gondor's time in power. Then at 0:54 where is struck with the drums of Mordor War machine, unexpected and from out of nowhere. Their are army strong and motivated. I do appreciate that at the end of the song, the vocalists stop before "krimpatul," which means "bind them," as clearly this is left blank to be filled in by our protagonists.
I love this theme and distorted... Violin? It tells you a story of Gondor borderlands, proud and ancient land the people of which keep much sorrow and have to stay forever vigilant facing the darkness itself.