Centimillimental and Given: who creates and performs the anime’s music?
A guide to the real solo project, the fictional band and the voices behind the songs.

Centimillimental and Given are not the same band. The former is musician Atsushi’s real solo project; the latter is the fictional band in the story. A song’s performer, writing credits and character identities can occupy different places in its credits.
The TV anime’s official music page offers an example. Centimillimental performs the opening Kizuato. The ending Marutsuke is credited to Given: Centimillimental wrote, composed and arranged it, while Shogo Yano, Mafuyu’s voice actor, performs the vocals.
For the film Given: To the Sea, the official music page lists Yuigon under Centimillimental and has separate sections for Given and syh. When searching, check the song title, performer and credits rather than relying only on the series name.
A Centimillimental concert does not automatically mean the fictional band’s full cast will appear. Guests and setlists depend on each event’s announcement.
