If it helps, it's really ok; the German title is "An die Freude". This was the title of Schiller's poem, and it's also the title of the final choral movement of

If it helps, it's really ok; the German title is "An die Freude". This was the title of Schiller's poem, and it's also the title of the final choral movement of Beethoven 9. So the usage is correct. It's right there on the title page of the score in every German edition. (I have three.) Source: me. I've sung as the soloist in Beethoven 9 numerous times.