What contribution did Li Bai make to Yuefu poetry?

Yuefu poetry is a pearl in the history of China's poetry, which once shone brightly in the history of poetry. Li Bai is one of the greatest romantic poets in the history of China's poetry, and also a master of the new Yuefu. He inherited and developed Yuefu poetry, and completed the fundamental transformation of Yuefu poetry from Han Wei to Tang Dynasty. This paper mainly discusses the inheritance and development of Li Bai in the history of Yuefu poetry, and why Li Bai's Yuefu poetry can become the highest peak in the history of Yuefu poetry.