Clockwork Suite: Dark Steampunk

The suite began, the musicians shifting effortlessly from tuning up to playing the first waltz. The little figurines glided out from their recesses in the walls of the dance hall and moved through their paces like the clockwork that ran them. Their faces were pulled back in macabre grins of joy, their heads tilted at angles indicating wild abandon entirely unfamiliar to those who knew human anatomy, angles that would have been impossible if, one and all, their necks had not been snapped before the clockwork mechanisms were slid under their skins like morbid bones. There was only one living girl in the mix, and she was nearly dead of exhaustion and fear. If she could keep up, she could live. This--

Inspiration: "suite", as a musical term for a set of instrumental dances.
Story Potential: High? Low?
Notes: Yes, I've a macabre mind. I sort of like this as some sort of steampunk/dark fantasy/horror invention. She can live, but only if she can dance as much as the clockwork figures. And somehow, she does. How? Why? Through what intervention? And what does that do to her for the rest of her life?