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 708A (Schubert) first two movements complete and orchestrated and a third movement in an incomplete piano sketch. Previously, his fourth symphony had had some Beethovenian influence (although it is more reminiscent of the earlier "Sturm und Drang" movement), his fifth Mozartian influence, and his sixth Rossinian influence (Schubert had listened to Rossini's music before writing his sixth symphony and was extremely impressed, then incorporating aspects of Rossini's style into his music). After writing the sixth symphony, Schubert experienced a directional crisis in his symphonic output, as he was not sure about whether to continue on the path, as in the sixth symphony,