A Horror Game Without Any Music

[FlawlessHappiness]

It wouldn't work. Music is pretty much why Amnesia is so scary. Every piece in the soundtrack is either mysterious, unnerving, or terrifying. I guarantee that the game is less scary if you play it muted (but it will still be scary).

I'd rephrase that: sound design is one of the main reasons Amnesia is scary. I think the ambient, incidental and physics sounds, the timbre and tonality of the whole soundscape are just as important as the music. Take a listen to some of the sounds in the "joints" folder and tell me they don't make you feel... ...uncomfortable.

Agreed. Sound is important. Music is not. Yet music is a boost.
Music also helps unfolding the a story. Putting feelings and character into a story.