At the heart of the film’s emotional resonance and kinetic intensity is the sweeping, symphonic score by Richard Yuen, a titan of Hong Kong film music. Yuen’s lush orchestrations heighten both the dramatic moments and the martial arts action, playing a pivotal role in defining the operatic tone of the film. Known for his sweeping orchestrations and cinematic sensibility, Yuen was a key figure in shaping the sound of Hong Kong cinema during its golden age. His score for Once Upon a Time in China II is a prime example of his ability to capture both the grandeur of the wuxia genre and its deep emotional undercurrents, helping establish the emotionally charged soundscape that would become synonymous with the era's martial arts films.