I've always found this song haunting, but I didn't understand what made it work. I can see into it now. It uses trance language to melt resistance and seduce, directive language to make requests, and power-over language to give it the creepy factor. And it cycles between them to keep an energy flow going. Just when the directive language starts to kick up resistance, the trance language drops back in and melts it off. It's woven together skillfully with the melody which makes it such a gorgeous song. Fascinating.
music shall surround you ...
Feel it, hear it,
closing in around you ...
Open up your mind,
let your fantasies unwind,
in this darkness which
you know you cannot fight -
the darkness of the music of the night ...
Let your mind start a journey
through a strange new world!
Leave all thoughts
of the world you knew before!
Let your soul take you where you
long to be!
Only then can you belong to me...
Floating, falling, sweet intoxication!
Touch me, trust me, savor each sensation!
Let the dream begin,
let your darker side give in
to the power of the music that I write -
the power of the music of the night ...
The lines that appeal to the senses... the "let" lines and "give in"... those relax the mind and encourage trance... along with the very regular singsong of the music. Then lines like "only then can you belong to me" bring back the chills and "eeek!" response (necessary for the audience to continue fearing the phantom a bit and worry for the girl). "In this darkness which you know you cannot fight" is directive trance language; after several lines that are comfortable and easy to go along with, it's suggestive and directive - a pushier way to still melt resistance. Then it's immediately followed by more gentle trance language to relax again. So it encourages a dual awareness - the soft, rocking, almost cradling night senses, combined with the eerieness of the phantom's power and mystery.