Shounen-ai? What shounen-ai? XD
If you want to watch the anime, go here This post has all the links to every episode in the entire series. I suggest you go now otherwise the links will be gone soon.
Ritsuko Okazaki - Morning Grace - is the opening song. *___* IT IS SO PRETTY AND I RECOMMEND EVERYONE TO SNAG THIS SONG. REALLY. IT IS LOVE.
International Symphony - Pas De Deux - One of the main songs used in Princess Tutu (only one mind you. I lost track of the amount of classical music used in this anime O__O) and a really nice instrumental track. Easy listening.
Pyotr Ilich Tchaikovsky - Dance of the Little Swans - aka Ahiru's secret theme song.
Holst - Mars, Bringer of War - I see this song as the climax song for the prince and the raven. It's got that thunderous epic quality about it.
Should one of the downloads die, please tell me.