Typically, the number of characters in each line and the arrangement of tones were determined by one of around 800 set patterns, each associated with a particular title, called "cípái" (詞牌). Originally, they were written to be sung to a tune of that title, with a set rhythm, rhyme, and tempo. Therefore, the title may have nothing to do with its content. Indeed, several "ci" often shared the same title. The titles did not refer to the content, but rather their shared rhythmic and tonal patterns. Some "cí" would have a "subtitle" or a commentary, sometimes as long as a paragraph, indicating the content. Sometimes, for the sake of clarity, a "cí" is listed under its title, followed by its first line.