Symphony No. 9 (Schubert) trombone as an effect, and therefore very sparingly, or, in the case of his Ninth Symphony, also to double the alto, tenor, and bass parts of the chorus as was common in sacred music and opera at the time. However, in Schubert’s Unfinished Symphony and the Ninth Symphony, the trombones become essential members of the orchestra playing throughout the piece, and even receive important melodic roles. Symphony No. 9 (Schubert) The Symphony No. 9 in C major, D 944, known as the Great (published in 1840 as "Symphony No. 7 in C Major", listed as No. 8 in the Neue
Beethoven and Mozart the impresario sponsored the sketch phases of Beethoven's intended opera "Vestas Feuer", just as he had been the impetus for Mozart's "The Magic Flute". (Beethoven eventually abandoned "Vestas Feuer" in favor of "Fidelio".) Mozart's influence was apparent in the works of Beethoven even after his death. For example, Beethoven copied a passage from Mozart's 40th Symphony into the sketchbook he was using when he composed his Fifth Symphony, the third movement of which opens with a theme similar to one from the Mozart. Charles Rosen sees Mozart's C minor Piano Concerto, K. 491, as a model for Beethoven's 3rd Piano