They can't seem to get the low notes in the "Santa Claus is coming to town" part right. That's the most disconcerting part that really makes it so creepy.
York, PA that has an old, big boiler which the owners turn into a sort of organ for christmas
Almost sounds electronic somehow.
Sounds like some kind of messed up steam whistle. What ever it is, they can't keep it in tune. It sounds more funny to me than scary. Does anyone know anything about exactly how they're getting all those notes out of that thing?
Josh
Owner of a Federal Signal Model D Audio YouTube
It's a single chamber steam whistle that is capable of changing it's tone by a mechanism inside that changes the cavity's length. That is why there is a transition between each note and not a sharp change.