I did not know this song before and when I listened to it, I saw what you meant, so I bring you a whole fucking animated adaptation of it.
I think I ended up interpreting it like the End of Eva where "Komm, süßer Tod” was playing and everyone was going from dead deader.
Unit 13 falls and so does Kaworus head.
Shinji is left wondering the land, his music as a companion to the pain no one acknowledges.He is again forced to pilot the Eva and is all alone facing death and all of his friends and just when the last angel seems to be gone forever, they reunite, in death. I TURNED THEM INTO TANG SOULS.