Symphony No. 8 - Schubert
Franz Schubert (1797-1828), was an Austrian composer of the early romantic era.
Schubert’s Symphony No. 8 was incomplete when he died in 1828. As a result, this work is often referred to as Schubert’s “Unfinished” Symphony.
To learn more about the composer, visit Franz Schubert on Wikipedia.
For more on the composition, visit Schubert Symphony No. 8 on Wikipedia.
Performance
Schubert: Symphony No. 8 Unfinished | Iván Fischer & Budapest Festival Orchestra
Excerpts
Schubert Symphony No. 8 audio excerpts are available on tromboneexcerpts.org.
Trombone Parts and Full Score
The full score of Schubert Symphony No. 8 is available on IMSLP.org.
NOTE: IMSLP provides access to public-domain scores and parts, with copyright status varying by country. Users are responsible for observing applicable copyright laws.
Trombone parts are available on IMSLP.org as follows:
Ranges and clefs by Part

More Schubert
Trombone Resources playlist of Schubert with Trombones in the instrumentation.