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=USUAN1100269

MacLeod's description:

Genre: Unclassifiable
Length: 1:04
Instruments: Synths

This is a dark and eerie arrhythmic thing with deep lows and cutting highs. Experimental only in the personal sense - I just got GarageBand, and I'm seeing what the (very nice) electronic effects can do. 030
ISRC: US-UAN-11-00269
2005