Boards of Canada - Heysanna Hosanna 

From Old Tunes Vol. 2. A reworking of the song "Hosanna" from the musical "Jesus Christ Superstar". A friend told me that the musical was supposedly based on a recreation of the crucifixion of Jesus Christ carried out by a group of drugged-up enthusiasts in a desert in the 1960s, who then proceeded to get so carried away with the affair that they actually left the man playing Jesus on the cross long enough for him to die. A chilling thought, really.