As evocative as the scene of the Puma Sisters doing their thing might be, and as culturally-charged a time as the release of ‘Dominion Tank Police’ might have been, much of the success of this scene is owed to the music. “Hey Boy,” by Riko Ejima, is a haunting song that, while seemingly chaste in that it seems to be singing about dancing, captures something deep, deep in the soul.