in the end, like addons and interfaces, its more what you want/need/like than the majority of people would like.
Generally when i look at a wow movie, i'm not really that much interested in the music but more in the movie itself, and i reckon the majority of the people feels the same. As long as you don't play some sort of lovesong while dueling it shoudl be ok
the only thing imho you should keep in mind is that the style of music should fit the moment of the movie its used for, what type of band and such doesn't really matter, just stick with what you feel is right
