Symphony No. 7 - Sibelius

Jean Sibelius (1865-1957), was a Finnish late romantic composer.
SSibelius completed Symphony No. 7 in 1924.
To learn more about the composer, visit Jean Sibelius on Wikipedia.
For more on the composition, visit Sibelius Symphony No. 7 on Wikipedia.
Performance
Sibelius: 7. Sinfonie ∙ hr-Sinfonieorchester ∙ Paavo Järvi
Excerpts
Sibelius Symphony No. 7 audio excerpts: Trombone only, with Jay Friedman (Chicago Symphony), and with full orchestra (The Hallé Orchestra) via The Trombone Clips channel on Youtube.
Trombone Parts and Full Score
The full score of Sibelius Symphony No. 7 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 Sibelius
Trombone Resources playlist of Sibelius with Trombones in the instrumentation.