What is the modern metrical theory of Crescent School?

Crescent School put forward the principle of emotional restraint as their poetic aesthetics, that is, rational restraint of emotion. Pursuing the strict meter of poetry, it is clearly put forward that "harmony" and "equality" are the highest aesthetic characteristics of new poetry. That is, the beauty of music and architecture, combining hearing with vision, puts forward and tries to practice the theory of three beauties of poetry: the beauty of music, the beauty of architecture and the beauty of painting. Its musical beauty emphasizes the syllables of poetry, that is, hearing, which means "there is format, flatness, rhyme and ruler", and "without format, there is no symmetry of knots or even sentences". Music beauty is the foundation of architectural beauty, and architectural beauty comes from music. The beauty of music is mainly manifested in the arrangement of meter (or syllable), and the form of meter is created according to the spirit of poetry content. The beauty of architecture is the symmetry of section and the uniformity of sentences, which belongs to the visual aspect. Specifically, the number of rows in each section is equal, and the number of words in each row is consistent, resulting in a neat and square appearance or a dried bean curd. The beauty of painting is to pay attention to words, draw "the shape and color of space", and then "color and outline", specifically, the color is bright, the image is vivid and the object is outstanding. Therefore, the Crescent School is mainly influenced by western romantic poetry, especially sonnets, and it is a betrayal of China's traditional poetry to some extent in spirit.