Kusaku Yamada (1886–1965) was a prominent Japanese composer, conductor, and music educator, known for his contributions to the development of modern Japanese classical music. His genre primarily encompassed Western classical music, often infused with traditional Japanese elements. Yamada studied in Germany, where he was influenced by both Western musical techniques and Japanese folk music. He is best known for his compositions such as "The Tale of the Heike" and "Kintaro," which showcase his ability to blend Western orchestral styles with Japanese themes. His work "Kōjō no Tsuki" (The Moon over the Ruined Castle) remains one of his most celebrated pieces and has become a staple in Japanese music. In addition to his compositions, Yamada played a significant role in music education in Japan, helping to establish the Tokyo Music School (now part of the Tokyo University of the Arts). His efforts in promoting Western music in Japan, along with his dedication to integrating indigenous musical forms, have left a lasting impact on the country's musical landscape, influencing subsequent generations of composers and musicians.