A type of vocal rhythm. There are three types of vocal rhythms that correspond to the rhythm of the hayashi :hiranori, chūnori, and ōnori. Hiranori is basically written in twelve characters in seven-and-five syllable meter and sung separated into eight beats. As in the following chant, “I–ro, ha, ni–ho, he, to–chi, ri, nu, ru, wo,” the first character begins with a half beat, with the first, third and fifth beats extended (indicated by the dashes above) or un-extended. Hiranori is characterized by a change in the number of characters and the presence or absence and length of verses, making it one of the most technically challenging rhythms of Noh.