Halloween // Looking for Halloween Music that is obscure.

I love finding music in general. But I been looking for obscure, lesser known, niche kind of Halloween music. We all know the classics Ghostbusters, Monster Mash, for some reason Cotton Eyed Joe (Seriously anyone know why this is included in Halloween Mixes?) Every day Is Halloween, Spooky Scary Skeletons and so on. I am just looking for stuff that is just not well known. Diamonds in the rough. I'll even take songs that are so bad that they are good.