Five syllables consists of five crotchets and three crotchet rests in one rhythm (two bars), while seven syllables consists of seven crotchets and one crotchet rest in one rhythm, but if the total number of crotchets and crotchet rests is eight in one rhythm (two bars), then it is acceptable (nine syllables includes a triplet part).
五音は1リズム（2小節）に5つの四分音符と3つの四分休符、七音は1リズムに7つの四分音符と1つの四分休符を基本形としているが、四分音符・休符の総数が1リズム（2小節）内に8つであればよい（九音の場合、音節数が9なら三連符が一部入る）。