Music by Kevin MacLeod (original composer: J. S. Bach). Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100293

MacLeod's description:

Genre: Classical
Length: 6:41
Instruments: Organ

Bach. WARNING! This is a very baroque organ piece. It sounds very old. Not something you listen to unless you're into that kind of thing. 008
ISRC: US-UAN-11-00293
Intense, Dark, 2004