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=USUAN1100639

MacLeod's description:

Genre: Unclassifiable
Length: 7:15
Instruments: percussion, synths
Tempo: 70

Originally released in a special collection as "Delayed Due to Dissonance", this piece is not part of a larger arc.
ISRC: US-UAN-11-00639
Eerie, Mysterious, Mystical, Unnerving 2009