Music by Kevin MacLeod. Released into the public domain (CC Zero). Download link: http://freepd.com/Atmosphere/Spacial%20Winds

MacLeod's description:

Genre: Horror
Length: 2:26
Instruments: Synth

Clear bowed-bell theme over a sweeping dark digital pad. 037
ISRC: US-UAN-11-00203
Dark, Unnerving, Eerie 2006