Last class, we went to the BalletMet to sit in on a dance rehearsal, the class being "modern dance". It seemed to combine a lot of the moves of ballet, but with a lot more contrast between "graceful" and "aggressive". The music was kind of modern and dissonant, very interesting.
Anyway, this was definitely tricky, but I'm fairly happy with some of the results. Most of this was reliant upon memory of pose and knowledge of anatomy. After all, when the pose disappears in half a second, how else are you supposed to draw?
I wan't the only one to find this hard. Most of us in the class are more comfortable with the "look, draw, look, draw, look, draw" approach as opposed to the "look, draaaaaaaaaaaaaaw" one.