 In 1950, he founded the Association of Film Music.The 1953 film "Ugetsu", directed by Kenji Mizoguchi, featured a score by Hayasaka; the film wons the silver prize at the 1953 Venice Film Festival.The year after, 1954, Hayasaka did another Mizoguchi film, the jidai-geki "Sansho the Bailiff (Sansho dayu)".