What does metrical poetry mean in poetry?

Also known as old-style poetry, it is a unique kind of poetry in ancient poetry, which refers to poetry works written according to certain sentence patterns and phonological rules. No matter in China or abroad, metrical poetry is a poetic style formed in ancient times. In Chinese classical poetry, it mainly refers to modern poetry with strict rhythm, such as five-character poems, seven-character poems, five-character poems and seven-character poems formed in the Tang Dynasty. Every poem has strict rules on antithesis, leveling and rhyme, and even the number of words in each poem is strictly limited. Sonnets in European classical poetry are also metrical poems, and Shakespeare once wrote 154 sonnets.