Pentatonic Power-Five Tone Theory--- The theory and techniques of the five tones from the Ling Shu have existed for thousands of years, but very few people have been able to understand them, let alone express them through music. Over the past decade, Dr. Pan’s research has finally uncovered the secrets of five-tone therapy. Based on this theory, he has composed and recorded 30 pieces of music specifically for music therapy, achieving highly encouraging results in clinical practice. It can be said that this music therapy is truly unique and unparalleled.