I was a little wary at how well combining Ballet with the Magical Girl genre would work, but you can tell the passion for both ballet and fairy tales that oozes out of the production. For instance, the episode titles are double layered with the German being either a ballet, fairy tale or a piece of classical music that thematically corresponds to the episode, whereas the Japanese "translation" is often a more literal description of what happens in the episode so like the fifth episode is "On the Eve of the Fire Festival -
Pictures at an Exhibition
Bilder einer Ausstellung
:
The Catacombs
Die Katakomben
". Similarly the OST is caked with classical music to the point where subtracting the OP and ED, I think there's only two or three non-classical tracks on a list of about forty songs which really gives the show a different feel then if they had just occasionally thrown in a few classical pieces which might have come across as pretentious.
People say that this show is a deconstruction of the Sailor Moon aesthetic, but I'm not sure I would agree with that as it's honestly only marginally a Magical Girl show, instead I'd say it's more accurate to call it a deconstruction of the idea of fairy tales, what given the characters becoming blatantly aware of the fact that they're in a story and them rebelling against the "roles" assigned to them by the author Drosselmeyer. Speaking of the man, his snarky Greek Chorus from outside the story reminded me of something like the Meta-Characters from Umineko and how they would have their own parallel plot to the characters on the game board. The "deconstruction" aspect comes in from stuff like how despite the protagonist Duck being a reference to the Ugly Duckling, the message of the anime is to be true to yourself and she ultimately gives up being Princess Tutu (the Swan Princess) and goes back to being Duck.
Something I have to bring up is how this anime really nailed the episode structure. At first it seems like a typical "enemy of the week" format where Tutu meets a person being afflicted by a shard of the Prince's heart that got stuck in their body and retrieves it for Mytho. But as things progress and you start to realize some incredible foreshadowing was sprinkled in for later events, which combined with the gradual character growth as the heroes interact with each other, makes you realize that not a single episode can be removed without drastically affecting the story. It's this kind of super tight script writing that makes me lament other shows like "Digimon: Ghost Game" that I'm also currently watching that has 60+ episodes and most of them are pointless filler.