"Blood, Sweat and Tears"

In the music video for "Blood, Sweat and Tears", the song pauses after the bridge to give way to a rendition of Buxtehude's "Passacaglia in D minor" (one of the video's many references to Hermann Hesse's "Demian") in an eerily unnatural-looking organ, leading to the ominous climax.

Example of:
Ominous Pipe Organ