Complex sentence: BMN plots the position of a dancer as seen from behind on a five-line stave like music notation, as if the dancer is standing in a giant stave extending from the top of her head to her feet.
Split into simpler sentences: BMN plots the position of the dancer as seen from behind on a five-line stave like music notation. Visualize the dancer standing in a giant stave extending from the top of her head to her feet.