I enjoyed the "waltz" feel on top of the dissonance (wow what an original comment). But yeah, I get the sense of a haunted house where I see ghosts or demons dancing. The change at about 13-14 seconds in is very apparent, but I think it could have been more prominent and could have evoked a stronger sense of emotion (dread, maybe tragedy), but effectively, I think it gets us where you intend us to be.