The word 配乐 (pèiyuè) is a compound formed by combining the verb 配 (pèi), meaning "to match" or "to accompany", with the noun 乐 (yuè), meaning "music". Structurally, it follows a common verb-object relationship where the first character describes an action applied to the second. Literally, it means "to match music", and its established meaning refers specifically to the musical score or soundtrack composed to accompany a film, play, or other visual media, effectively capturing the action of fitting music to a scene.