This mod replaces the brimstone sound with LEEDLE LEEDLE LEEDLE LEE

To install:

Place contents of zip folder in your Binding of Isaac rebirth resources folder.
Thats it

This mod replaces the sound of everything that uses brimstone, such as the wall crawlers, Azazel, gluttony, Krampus, etc.

P.S. it might be a little quiet