Oh I know, and sometimes innovative music like that, while great on its own, will actually hinder the movie. Scores are supposed to add to the viewing experience, not take away or distract from it.
I should have added that while he stayed in that same key and never bothered to stray from it, he didn't even do anything great within that key. It sounded, a lot of times, like filler music. Random notes used to take up time, so that too much wouldn't have to be cut from the score later.