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=USUAN1100526

MacLeod's description:

Genre: Soundtrack
Length: 3:35
Instruments: Bells, Affected Piano, Strings

Spider Eyes is an eerie soundscape created with distant high strings, dissonant non-percussive piano textures, and alternately tuned bells. This piece features much sustain and space. 021
ISRC: US-UAN-11-00526
Dark, Eerie, Mysterious, Suspenseful, Unnerving 2009