Definitions by ArdenAC

Barcelona Bathtub 

The performer wets their finger and starts rimming the human instrument's asshole. When the pressure is right, the instrument farts, producing a pure tone. With practice full songs can be replicated.

The maestro performed the Pokemon Theme Song in B Flat-ulence with the Barcelona Bathtub technique.

Barcelona Bathtub by ArdenAC May 24, 2021