Music Composition or Computer Music Composition. See where some of the persons on the list below (first link) studied music. Look at music schools and find out what their alumni are doing now; see example at second link.
Look for schools that offer scholarships to high school students who demonstrate talent in composition. See example at third link. Then enter the competition for those scholarships.
Major in Engineering, because you are almost certainly not going to be a film score writer. Anyone who advises you to take a Major for "Film Scores," without telling you the ugly career realities you would face, is being grossly irresponsible.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.