Shi Feiyang in his previous life delved into the study of ancient Chinese sciences, exhaustively probing their origins and analyzing their underlying logic.
Yin Yang, Five Elements, Eight Diagrams, Heavenly Stems, Earthly Branches, and even the Sixty-Four Trigrams were all initially used by the ancients to calculate astronomy and devise calendars; the subsequent development of mathematics, music, medicine, architecture, and so on were all framed within this context.
At the time, he studied the relationship between the Five Elements and the Five Musical Notes, discovering that simply fitting the Five Elements to the Five Notes was an oversimplification. There was an intrinsic set of logic to establish pitch and tone. As he delved into the subject of music, he then discovered a name he had never heard of before in textbooks or in any other kind of reading material—Zhu Zaiyu.
