This is the first systematic documentary about the life of the Grandmaster of Cantonese music Lyu Wencheng and the changes in Cantonese music. The destinies of the characters in the film, the development of Cantonese music, and the turbulent national situation are intertwined. The documentary aesthetic employed in the film enhances its visual impact in an objective, composed, and purposeful manner. It uses music compositions by Lyu Wencheng from various periods and classic Cantonese music pieces to reflect Lyu Wencheng's influence on Cantonese music, Cantonese opera, and even Chinese folk music. It also portrays the succession of generations of Chinese musicians represented by Cantonese musicians, who have enriched the connotation and extension of the inheritance spirit and innovation spirit of the "Chinese music school" continuously.