I initially thought it was a history book about the State of Zeng during the Spring and Autumn and Warring States periods, but it turned out to be a book created to explain the massive set of chime bells and various musical instruments unearthed from the large tomb of Yi, the Marquis of Zeng (Sui), which was discovered not long ago. In any case, I was very surprised to see the enormous set of chime bells in the photo. The book contains explanations regarding the discovery and excavation process