What is the definition of the new folk song movement?

The New Folk Song Movement is a mass movement initiated by Mao Zedong and organized by party committees and governments at all levels, with the Great Leap Forward as the background and related to Mao Zedong's literary thought. Its influence on poetry lies in that it is regarded by many people as a new way of poetry development that is opposite to the May 4th new poetry tradition. 1958 on March 22nd, Mao Zedong pointed out in his speech at the Chengdu conference that "the way out for China's poetry is the first folk song, the second classical, and on this basis, new poetry is produced, which is in the form of folk songs, and the content is the unity of opposites between realism and romanticism.