Ge Yanxing, written by Cao Pi, occupies an important position in the development history of seven-character poems, and it is also the earliest complete seven-character poem in existence. The Book of Songs is basically a four-character style, and The Songs of the Chu is a seven-character style, but most of them have the word "Xi", which is different from the seven-character poem in format and charm. However, Xing really got rid of the shackles of the form of Chu songs and made the seven-character style independent. Cao Pi played a pioneering role and laid a good foundation for the creation of seven-character poems by Bao Zhao and others.
Ge Yanxing is a theme of Yuefu, which belongs to a part of the flat tune of Xianghe Pavilion. This piece of music has never been recorded before. Ge Yanxing describes a woman's desire for her husband. The pen is euphemistic, the language is beautiful and the feelings are lingering. The outstanding feature of this poem is the ingenious combination of landscape writing and lyric, and the rhyme of each sentence is straightforward and beautiful.