So today I ended up reading the play Aria da Capo, due to being curious because an actor I crush on played the leading man in an old television production of it. Then, utterly bewildered, I looked for more information on exactly what the meaning was intended to be and stumbled across this article:
http://provincetownplayhouse.com/ariadacapo.html The idea of the characters as players in a production that they can't escape, and whose roles end up becoming all too real, certainly puts me in mind of Drosselmeyer and Princess Tutu.