(1) Bai Juyi's "Pipa" not only describes the change of melody with metaphors, but also highlights the rhythm of high and low pitches with playing actions, such as "She brushes the string, twists slowly, sweeps and plucks".
(2) Han Yu's "Listening to the Skillful Teacher Playing the Piano" makes good use of metaphors and uses another thing to describe the sound of the piano at different stages. For example, when writing bass, he compared the voice to two close people whispering, and when the voice was high, he described it as an impassioned heroic scene of a soldier.
(3) Li He's "Li Ping Yong Yin" chooses the method of side lining, which does not directly describe music, but highlights the change of sound rhythm by writing the reaction of "audience".
2. Different literary schools:
(1) Bai Juyi's Pipa Xing is a ballad style. Ballad style can not only express feelings for a long time, but also gallop forward step by step, sparse but not stagnant, and express more freely and richly.
(2) Han Yu's "Listening to the Skillful Teacher Playing the Piano" is a seven-character poem, and every sentence in the whole poem is seven words or mainly seven words. Because of its limitations, there are not many things to write, so the description is monotonous.
(3) Li He's "Li Ping Yong Yin" is an ancient poem, also called ancient style. It is written according to the practice of ancient poetry, and the form is relatively free, so Li He is more free to express himself.
3. Different creative backgrounds:
(1) Bai Juyi's Pipa Trip was written in the eleventh year of Yuanhe (AD 8 16). In autumn, Bai Juyi was demoted to Jiangzhou Sima for two years. He saw off guests in Jiangtou, Xunyang, and met a singer who was abandoned in his youth because of his artistic skills. She was depressed, and combined with her own experience, she wrote in the genre of singing.
(2) Han Yu's Listening to the Clever Master Playing the Piano was written in the eleventh year of Yuanhe (8 16). According to legend, a monk named Ying came to China from India in the Tang Dynasty. People call him Ying Shi. Ying Shi is famous for playing guqin, and Han Yu also came to appreciate Ying Shi's piano performance, and wrote a poem to express his feelings of listening to Ying Shi's piano playing, which is this song "Listening to Ying Shi's piano playing".
(3) Li He's "Li Ping Yong Yin" was written from the sixth year of Yuanhe (8 1 1) to the eighth year of Yuanhe (8 13). At that time, Li He was working in Chang 'an, and he was appointed as Li Lang (a junior official in charge of sacrifice).
4. Different tone changes:
(1) Bai Juyi's pipa journey is from bass to treble, then to bass and finally to treble, and the rhythm changes greatly.
(2) Han Yu's listening to Clever Qin is a changing process from bass to treble, then to bass, then to treble and then to bass.
(3) The music changes in Li He and Li Ping's poems are monotonous, mainly from low to high, but they are skillfully written because of his emotional changes.
Baidu Encyclopedia-Pipaxing (Poems by Bai Juyi)
Baidu Encyclopedia-Listening to Clever Playing the Piano
Baidu encyclopedia-quotations from Li Ping