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
Symphony No. 3 (Beethoven) theme's re-use in the symphony. It is the only theme that Beethoven used for so many separate works in his lifetime, and each use is in the same key of E major. The "Wielhorsky Sketchbook", Beethoven's principal sketchbook for 1802, contains a two-page movement plan in E major that directly follows the sketches for the Opus 35 Variations, which has been identified as being intended for the Third Symphony. While the movement plan gives no explicit indication regarding the finale, Lewis Lockwood argues that "there cannot be any doubt that Beethoven intended from the start" to use the same theme