The medieval laisse of the chanson de geste is the most extended form of monorime in French literature: the entire laisse, which can range from three to several hundred lines, is organized around a single assonanced vowel sound that creates a hypnotic sonic unity; A comical modern monorime might read: "Mon chat mange du chocolat / Il dort sous le sol de bois plat / Il ronronne près du résultat / Du feuilleton dramatique éclat" using the sound "-at" throughout with increasing absurdity; Hugo's use of monorime in isolated poems creates an incantatory effect, as when a series of lines all rhyming on the same sound build a ritual repetition that lifts the poem from the conversational into the ceremonial; A student writing a monorime should choose a rich rhyme sound with many possible words, like "-oir" or "-eur" in French, and attempt to sustain the single rhyme for twelve lines, discovering how the constraint forces unexpected word choices that can be more interesting than the first options a conventional rhyme scheme would suggest; The monorime's relationship to repetition in music, where a repeated bass note or rhythmic pattern can create both monotony and trance, explains its use in contexts of ritual, incantation, and hypnotic suggestion across multiple cultural traditions; Apollinaire experiments with monorime in some of his Alcools poems, using the obsessive repetition of a single rhyme to enact the circular, inescapable quality of memory and desire.