Communicating with them at a special frequency could greatly improve one's chances of staying safe and avoiding conflict. At a high enough level, one could even influence or command these beasts, even the Eerie.
Lu Yuan saw this and thought of Sandworm Town.
Back then, Karl had taught him to play the Song of the Sandworm. Once the Bone Flute sounded, the sandworms had indeed quieted down. That truly was a form of communication.
He continued reading.
The book went on to describe the decline of Ancient Music Theory.
There were two reasons.
The first was that the entry barrier was extremely high.
In the early stages of cultivating Ancient Music Theory, there were practically no means of self-defense. You might learn a tune and be able to play it, but before reaching a certain threshold, facing a truly Eerie entity or an enraged giant beast, those skills were no better than nothing.
And reaching that threshold took too long. Most people could not hold on until that day.
The second reason was even more fatal: later, easier methods emerged.
One Transcendence Path after another had been opened up. Faith, knowledge, Eerie—each had its own route. Cultivation was fast, results came quickly, and they could fight and endure. Who would still be willing to spend years or even decades gnawing through that slow, unreliable set of Ancient Music Theory?
Over time, Ancient Music Theory declined.
Lu Yuan turned several more pages, and the main text of the book entered its core section.
The core of Ancient Music Theory was music.
Different pieces corresponded to different targets. Sandworms had the Song of the Sandworm, while other beasts had other melodies. Every piece had been painstakingly developed through repeated experimentation by those before them. Without the corresponding tune, there was no way