Simple and clean

[GunbladeMaster]

It's the music you face when you fight Chernabolg (the huge winged demon that gives you Superglide).

Also, I'm fairly sure the music in the link you provided me is the FFVII version of One Winged Angel, not the KH version. There are differences between the two.

well that site is based on the KH game so i doubt that that song is the VII version and not the KH version

EDIT: but i listened to the song an i see what u mean. it does sound too much like the VII version