I'm with TDS on the drums thing.

The reason is that I FEEL the rythm throughout my body, thus the movement that follows...the slow hypnotic sway of my hips and....

(oops. got a little distracted there)

The other thing would be the sound of chains. The cold steel...the strength...not knowing what he's going to do with them...

*fans self*

Yep...sounds are very powerful.