Circle of light is one of my all-time fav.-b-sites and I played it often enough to know it of by heart.
I just tried to play braveheart-the theme melody and when it still was int he beginning and only repeated the first notes I tended to play the melody of circle of light (the one that doesn't sound that "sharp")...so I kinda wondered whether Scooter have been inspired by that song when they made CoL...what d'you think?