This ancient and traditional poetic style has a strict structure, and there are certain restrictions on the number of words, lines, even tones or accents and rhymes. It has a certain number of sentences. For example, regular poems generally pay attention to the rhyme of flat and even tones, and the rhyme is antithetical, such as "flat and even tones, flat and even tones." Different countries have different metrical poems. Such as China's modern poems (quatrains and metrical poems), western sonnets, limerick, quatrains, Spanish quatrains, Italian quatrains and Japanese haiku.
It is the crescent school that advocates metrical poetry. Wen Yiduo (1899- 1946) has made great contributions to the theory of metrical poetry. In order to construct new metrical poems, Wen Yiduo proposed to construct the beauty of music, painting and architecture, and made painstaking creative practice for this purpose. Wen Yiduo has two poems, Red Candle and Dead Water. Patriotism runs through his works. In addition, his poems also showed the aggressive pursuit spirit during the May 4th Movement. His artistic expression is romantic. He often chooses an image as a symbol of love. He makes good use of appropriate metaphors to enhance the image and artistic appeal of poetry. His poems have the beauty of music, painting and architecture, which has a great influence on the whole metrical school.