Thanks so much!!! There is an incredible juxtaposition and diversity of ideas among those four ballets, especially considering the short period of time in which they were all created. It is as if Balanchine couldn't get his different visions out fast enough after the year away from the company. Prioritizing the music and aesthetics, it makes sense that Balanchine would have drawn on different sources for each of the different ballets, and the motifs are indeed quite different. Agon definitely stands out among the four for its dynamic of passivity on behalf of the female, and manipulation of her body by the man. Comparisons will be a good way to illuminate the novelty of what happens in the Agon pas. I have also been looking at Polio therapy exercises, and I will point out that the motif of this manipulation that is seen with Agon continues in Bugaku and Episodes. And I really appreciate the Repertory in Review suggestion - definitely going to get on that! Thank you so much for the luck and suggestions, and would love to share the results... Will report back soon