For more on Sacred Dance please visit the following site. https://trinitysacreddance.com/
Still building the site with many promising articles coming along. I will happily add these when I am satisfied with their content.
Part of the difficulty I face is that I am in the process of finding a new home and most of my reference works are in storage.
Where I can I check the factual elements of the pieces, though often sources have to go unacknowledged.