Gilgamesh, I've heard of this anime however I have yet to see it and I don't generally like the style/genre in which the song was written. However, this song is particularly catchy and I find myself going back to it over and over on the play list. I love how djpretzel creates such a simplistic loop and yet adds so much emotion. The pianos that are slightly pan right also add so much to the piece, they are truly the perfect icing on a delicious cake.
The thing that I noticed first in this song was that djp is singing in Japanese! He mentioned in his self review that he expects a few new Japanese students to criticize him on his pronunciation (however I do agree that it is a huge pride issue amongst much of the anime fans =P). With my little knowledge of the Japanese language, I thought the song sounded great.
Anyways, if you're like me, never seen Gilgamesh, I would strongly urge you to download this piece, because this song is just well produced, well composed, and well performed. (all 10s fyi)