The Yuan dynasty's innovations to literature are reflected in what aspect

The Yuan Dynasty's innovations in literature are reflected in the Yuanqu.

Yuanqu, also known as sandwich, is a form of literature and art prevalent in the Yuan Dynasty, including miscellaneous dramas and loose songs, sometimes referred to exclusively as miscellaneous dramas. Miscellaneous dramas, a form of performance characterized by comical and funny in the Song Dynasty. In the Yuan Dynasty, it was developed into a form of opera, with each book consisting of four main folds, and a wedge added at the beginning or between folds. Each fold with the same Gong tone with the rhyme of the Beiqiu suite and the composition of the Bingbai. For example, Guan Hanqing's Dou'e Grievance. Popular in the metropolitan (now Beijing) area. Ming and Qing dynasties also have miscellaneous plays, but each book is not limited to four folds. The loose song, prevalent in the Yuan, Ming and Qing dynasties, there is no bingbai form of the song. The content is mainly lyrical, there are two kinds of small orders and loose sets.