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, D 2B (Schubert) already knew what their function was in a Classical orchestra. \relative c' { </score> Symphony, D 2B (Schubert) Schubert's Symphony in D major, D 2B/997, is an unfinished work that survives in an incomplete 30-bar orchestral score. The sketch includes the whole slow introduction and the first theme of the Allegro before breaking off. It is one of Schubert's six unfinished symphonies. It was begun in 1811, when Schubert was fourteen years old, but it is unclear exactly how much he wrote before he abandoned the symphony (despite the fact that he would live another seventeen years). Its instrumentation is