I hope historiennedeladanse will.
I don't know if my reply should go here, but Thanks, Cabro, for the welcome! I, too, hope that historiennedeladanse will answer the iconography question, but if she has, I haven't found it yet. I'm not ready to take on "BalletTalk" just yet, and I'm no longer teaching, so I'd rather not get involved in a teachers' forum. Hopefully, someone will take on the iconography question. I printed out the article on modern dance (can it be preserved) and found that it has a lot of things I disagree with in it, but I'll save that for another time.