It plays the first major solo in Copland's An Outdoor Overture above pizzicato string accompaniment, and its lower range was once called the (*)  principale.
Mozart added a part for this instrument for the Vienna premiere of his Symphony No. 32, which was not present in the original Salzburg version. In the allegretto second movement of Haydn's "Military" symphony, the coda begins when the rest of the orchestra drops out to leave these instruments playing alone.  It plays the first major solo in Copland's An Outdoor Overture above pizzicato string accompaniment, and its lower range was once called the (*)  principale. Anton Weidinger refined and championed a version of this instrument with keys to let it play chromatic passages. Weidinger was the dedicatee of Johann Nepomuk Hummel's concerto for this instrument, which exists in both E and E-flat versions. Haydn's only concerto for this instrument was also written for Weidinger and is in E-flat. For 10 points, name these brass instruments which introduce the main theme of Fanfare for the Common Man. 
Mozart added a part for this instrument for the Vienna premiere of his Symphony No. 32, which was not present in the original Salzburg version.
trumpet