i think it works well for those scenes where you are trying to build tension.

Afterall, when the music comes on you KNOW (or shoudl do) that soemthing is about to happen.

Does it work as a theme tune? Sure, but you only need to have glimpses of what it is your representing as the guys say above, its like a mystery/surprise theme that works well if its used in the right context.

god, i just used knowledge from my major wtf?