What do most of China's "Twenty-four History" books specifically describe?

In the Twenty-four History of Lezhi China, most of them have special records about music. There is Le Shu in Historical Records, and the rest are either called Yue Ji or Yue Ji, or combined with ritual narration, called Li Yue Ji. The music records of each generation not only objectively describe the music theory, music evolution, music types and music and dance works of the previous generation, but also highlight the existing situation of current music.