Someone mentioned the word "masterpiece" here. I agree. Love the variations in melody, texture, etc. ... and the dark mood, which - to me - elevate it to such status. Not a boring moment in the song, not a "here comes the melody again" moment or something. Every time the melody does return, it feels like it has been varied in some way. In short: what a brilliant job. That ending, too ... with the guitars ... yes!!! Congrats.