Tang poems include five-character, seven-character, quatrains, and rhymed poems. Tang poems are mainly five- and seven-character poems, and the words are filled in according to word plates. The sentence patterns are of different lengths, so they are also called long and short sentences. The music is similar to the lyrics and must be filled in according to the music brand. Therefore, poetry writing by people in the Tang Dynasty can be called poetry writing, while lyrics writing by people in the Song Dynasty and music composition by people in the Yuan Dynasty can be called writing lyrics and music. The lyrics of Song lyrics are tunes from the Central Plains region, while Yuan tunes come from the tunes of the northern grassland peoples, so Yuan tunes are also called Northern tunes. Yuan opera, also known as Yuan opera, is an opera art that was popular in the Yuan Dynasty. It is a general name for Sanqu or opera. Compared with Ming legends (Southern Opera), later generations also called Yuan Opera Northern Opera. Yuan Opera has the same literary status as Song lyrics and Tang poetry.
Qu in a broad sense refers to all kinds of music that can be played since the Qin and Han Dynasties, such as Han Daqu, Tang and Song Daqu, folk ditties, etc. Usually, it refers to the Southern Song and Northern Song since the Song Dynasty. The styles of the same words are similar, but generally the number of words can be added in addition to the fixed pattern, which is relatively free, and spoken language is mostly used. It is divided into two categories: opera (or drama, including dramas, legends, etc.) and Sanqu, which have been very popular since the Yuan and Ming Dynasties. Therefore, it was called Yuan Opera in later generations.
Ci is an art form of poetry and a type of poetry in ancient China. It is also known as Song Ci, Ququ Ci, Shiyu, and long and short sentences. The Liang Dynasty of the Southern Dynasties, which began in the Southern and Northern Dynasties of China, was formed in the Tang Dynasty and reached its peak in the Song Dynasty. In the beginning, it was sung along with the music, so writing lyrics was also called filling in lyrics and relying on the sound. Later, it gradually became independent and became a specialized art of poetry.