I love that theme, too, but never knew someone had put words to it. I'd like to see them and an English translation, too.
(Of course that video led me down the rabbit hole to a finale which uses the same theme. This finale uses a happy ending to the ballet.
https://m.youtube.com/watch?v=SXJawzOLS3k#fauxfullscreen
And then I watched a 10-minute clip of the prince, courtiers, and the Black Swan ending with what are quite literally her star turns. I'll leave that for anyone interested to find on their own.)