The Sound Institute of So Und is introduced in the episode "James Baxter the Horse." Finn, Jake and BMO record "the best feel-good sound" here. Pizza People manage the place.
Appearance[]
To enter, one must think happy thoughts and follow one's heart. It will lead one to a row of complex metal passageways and find the place that one wants to be. The floor and the different types of capsule-like gadgets hanging on the ceiling are red. Each room is full of sound equipment for the user's preferences.