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=USUAN1100877

MacLeod's description:

Genre: Unclassifiable
Length: 4:00
Instruments: Synths

A sort of drone-based piece with something that sounds like a waterphone, and some other things that I don't know what they could be. Super chill - good amounts of tension with some glorious consonants.
ISRC: US-UAN-11-00877
Calming, Eerie, Mysterious, Relaxed 2011