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=USUAN1100113

MacLeod's description:

Genre: Soundtrack
Length: 3:39
Instruments: Bells, Dulcimer, Synth, English Horn, Percussion, Flute
Tempo: 80

This piece stars a super-low bass line that physically unnerves. The bells and other melodies offer enough complexity to offset the simple repetitive lines. 035
ISRC: US-UAN-11-00113
Dark, Eerie, Mysterious, Somber, Unnerving 2007