Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100876

MacLeod's description:

Genre: Soundtrack
Length: 2:24
Instruments: French Horns, Trombones, Cimbasso, Trumpets, Drum, Chimes
Tempo: 60

Deep and rich piece of remembrance for brass. The melody is carried by the horn, with some help later by trumpets.
ISRC: US-UAN-11-00876
Dark, Epic, Somber 2011