These five tones are Gong, Shang, Jiao, Ba and Yu. It is equivalent to the current do (1), re (2), mi (3), so (5) and la (6), because these five tones are the main ones in China music, which are called "pentatonic scale", and the others are partials or inflections, that is, sound names. Oriental blue, connected with the liver, takes five tones as the angle, and the onset is often frightened; The south is red, connected with the heart, and the five tones are emblems, and the onset is often manifested in the new pulse. The center is yellow, communicating with the spleen, and the five tones are the palace. The onset is often manifested in the muscles and the base of the tongue. West white, connected with the lungs, five tones are quotient, and the onset often shows back coating. The north is black, communicating with the kidney, and the five tones are feathers. The onset often shows knee bones. According to these, we can know which part of our body is uncomfortable and what kind of music we should listen to!