Bremen, also known as the Musicians of Bremen and originally known individually as Doodle-doo, Heehaw, and Woof, is a Distortion comprised of three former founding members of the Musicians of Bremen in one body, later becoming members of The Reverberation Ensemble. Fights by using horns coming out of their body, and each head has their own mind.

They are the members of the Reverberation Ensemble, and their goal is to steal the Library's Light and use it to turn the entire City into Distortions.