Poetry have challenged the traditional definitions of the sonnet form, rendering entire sequences of "sonnets" that often lack rhyme, a clear logical progression, or even a consistent count of fourteen lines. "Shi" () Is the main type of Classical Chinese poetry. Within this form of poetry the most important variations are "folk song" styled verse ("yuefu"), "old style" verse ("gushi"), "modern style" verse ("jintishi"). In all cases, rhyming is obligatory. The Yuefu is a folk ballad or a poem written in the folk ballad style, and the number of lines and the length of the lines could be irregular. For the
Sonnet considered to be mutually exclusive to separate genres, as demonstrated in works such as "An Ode to Mary". The Greek poet Yannis Livadas in 1993 invented the so-called "fusion sonnet", which first appeared in a poetry collection entitled "The Hanging Verses Of Babylon"/"Οι Κρεμαστοί Στίχοι Της Βαβυλώνας" (Melani Books, Athens 2007), . Paulus Melissus (1539–1602) was the first to use the sonnet and the "terza rima" in German lyric. In his lifetime he was recognized as an author fully versed in Latin love poetry. The "Sonnets to Orpheus" are a cycle of 55 sonnets written in 1922 by the Bohemian-Austrian