"Music has an impact on people that many other mediums do not. It’s capable of both evoking emotional response with softer melodies and pumping blood through your veins with its faster beats. Music can set tone faster than anything else, be it visual aesthetics or good writing, is capable of doing. This is because it draws on a primal part of our brains and uses our own feelings and memories to craft the message it’s trying to convey to us, and by using our own mental brush to paint the image it brings a much clearer one to life."
Update Added the Interview with Bioshock Composer Garry Schyman