Another source might be the Phantom of The Organ recording by Verne Langdon.
I just realized watching one of those YouTube videos linked from the site above that Danse Macabre is the tune used for one of those halloween Songs kids used to listen to in grade school. It's from Wade Dennig's LP "Halloween Games, Songs And Stories" I think, and the song is called "Halloween". It's the one that starts out "H...A..DOUBLE L...O...W....DOUBLE E....N SPELLS HALLOWEEN..."
Danse Macabre by Saint Saens is my favorite classical Halloween piece. It's got ghosts, skeletons, death on the fiddle, chimes at midnight, and the rooster crowing in the morning which signals all the spooks to head back to the graveyard. Perfect.
But for organ, Toccata and Fugue in D might be #1. And Phantom of the Organ is right up there.