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=USUAN1100713

MacLeod's description:

Genre: Horror
Length: 4:22
Instruments: Synths, Cymbals, Voice

Breathy noises make the hairs on the back of your neck stand, while screeching strings and high-pitched noises are distracting and spine-tingling. 037
ISRC: US-UAN-11-00713
Eerie, Mysterious, Unnerving 2010