A sharp sword is not a Yuefu poem.
"Sharp Sword" is a work created by Han Yu, a famous writer in the Tang Dynasty. Han Yu and Liu Zongyuan were the advocates of the ancient prose movement at that time, and they were collectively known as "Han and Liu". Su Shi praised him for his "writing that caused the decline of the Eight Dynasties, his Taoism that saved the world, his loyalty to the wrath of his master, and his bravery to win the command of the three armies" (Eight Dynasties: Eastern Han, Wei, Jin, Song, Qi, Liang, Chen, Sui). Both prose and poetry are famous. His works include "Mr. Changli's Collection".
Han Yuefu refers to an institution that specializes in the management of music, dance and singing teaching. Yuefu was first established in the Qin Dynasty. It was an institution under the jurisdiction of the Shaofu at that time that specialized in the teaching of music, dance and singing. In 112 BC, it was officially established during the period of Emperor Wu of the Western Han Dynasty. The Yuefu's duty is to collect folk songs or literati's poems to set the music for performance at court sacrifices or banquets. The poems it collected and compiled were later called "Yuefu Poems", or simply "Yuefu Poems".
About the author:
Han Yu (from 768 to 824, from the third year of Emperor Dali of the Tang Dynasty to the fourth year of Mu Zong's Changqing reign, fifty-seven years old), also named Tuizhi, was born in He was born in Heyang, Henan (now Meng County, Henan), and his ancestral home was Wangchangli County (now Yixian, Liaoning Province). He called himself Han Yu of Changli, and was known as Han Changli in the world. In his later years, he served as the Minister of the Ministry of Personnel, also known as the Ministry of Personnel. His posthumous title was Wen, and he was known as Han Wengong in the world.
Liu Zongyuan, a writer in the Tang Dynasty, was the advocate of the ancient prose movement at that time, and they were collectively known as "Han Liu". Su Shi praised him for his "writing that caused the decline of the Eight Dynasties, his Taoism that saved the world, his loyalty to the wrath of his master, and his bravery to win the command of the three armies" (Eight Dynasties: Eastern Han, Wei, Jin, Song, Qi, Liang, Chen, Sui). Both prose and poetry are famous. His works include "Mr. Changli's Collection".