Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license: http://creativecommons.org/licenses/by/3.0/. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100271

MacLeod's description:

Genre: Horror
Length: 1:29
Instruments: Organ

Pipe organ piece. This is apparently a 'Czardas', a traditional Hungarian folk dance. I would like to thank Keith for the info. 006
ISRC: US-UAN-11-00271
Dark, Bouncy, Eerie 2006