Your grammar is terrible, and also, you're too young to contribute to wikis. You need to be at least 13 years or older to contribute, and you're currently 11. I know you meant well, but I don't think I can live with your good intentions. Case closed.
Well, it plays in Level 7, inside the Kwik-E-Mart, or Spook-E-Mart, as it's called there. It's sort of like the Kwik-E-Mart interior music from Level 1 & Level 4, except reversed, and more ominous sounding.