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=USUAN1100569

MacLeod's description:

Genre: Horror
Length: 3:32
Instruments: Strings, Synths, Choir, Brass

Calm opening with giant hit around 1:50 that calms down some and ends on grating tones. 006
ISRC: US-UAN-11-00569
Dark, Eerie, Intense, Unnerving 2009