Bah. Pretty much every game that I bought when it was first released, I always picked up the game guide if it had one. I know what I am doing. Hell I was surprised at the Revan revelation in K1 to be you.
Background music, noise, etc is a must. Bloodlines would not have been great without it. Or any other game for that matter.
Music if used right, like in horror films, can make a game more jumpy for the player.