Rhythm game
Rhythm game or rhythm action is a genre of music-themed action video game that challenges a player's sense of rhythm . 
<triplet> Rhythm game <subj> genre <obj> instance of <subj> music-themed <obj> subclass of <triplet> music-themed <subj> Rhythm game <obj> said to be the same as <subj> genre <obj> instance of <triplet> action video game <subj> genre <obj> instance of