Friedrich Schiller van Beethoven said that a great poem is more difficult to set to music than a merely good one because the composer must rise higher than the poet – "who can do that in the case of Schiller? In this respect Goethe is much easier," wrote Beethoven. There are relatively few famous musical settings of Schiller's poems. Notable exceptions are Beethoven's setting of "An die Freude" ("Ode to Joy") in the final movement of his Ninth Symphony, Johannes Brahms' choral setting of "Nänie" and "Des Mädchens Klage" by Franz Schubert, who set 44 of Schiller's poems as Lieder, mostly for
Symphony No. 9 (Beethoven) of Symphony No. 9 involved the largest orchestra ever assembled by Beethoven and required the combined efforts of the Kärntnertor house orchestra, the Vienna Music Society (Gesellschaft der Musikfreunde), and a select group of capable amateurs. While no complete list of premiere performers exists, many of Vienna's most elite performers are known to have participated. The soprano and alto parts were sung by two famous young singers: Henriette Sontag and Caroline Unger. German soprano Henriette Sontag was 18 years old when Beethoven personally recruited her to perform in the premiere of the Ninth. Also personally recruited by Beethoven, 20-year-old contralto