Watch VoirFilms. With the Fifth Symphony, the Symphony No. 9 is the most famous piece. Its unusual length, the adjunction of soloists and of choruses, the choice of the Ode to Joy by Schiller, all of this concurs to its fame. The Ninth Symphony is a "Big Bang" in symphonic terms. A grandiose apotheosis, sublimating all of Beethoven's work by being the most universal and immediately understood piece ever written.