It's a Happy Day!" quotes Hubbard's Scientology: A New Slant On Life.[23] Songs are set to "cheesy synth-keyboard backing" and feature "sublimely clunky dance breaks".[2] An electronic score emphasizes the musical's "loony conviction", while sleigh bells give the play a feeling of a "jazzed-up saint's play".[3] The songs incorporate video game music, and "beats from a child's keyboard synthesizer."[4] The music in the show has been compared with the symphonic band Polyphonic Spree, and with the educational short films of Schoolhouse Rock.[9][5]