Acceleration of strength and tempo as the vocals and music gain momentum. The term Kakarurefers to different things according to the style. It is used when moving from hyōshiawazu (vocals that do not match the rhythm) to hyōshiai, (vocals that match the rhythm), when the vocal changes fromkotoba(sung with no notes) to sashi-cho (sung out of rhythm), or for a vocal part that is addressed to another performer.