noun
song sung behind the scenes (kabuki)
In kabuki, a song performed offstage or behind the curtain, often to accompany action or set the mood. The term is domain-specific and not used in everyday conversation.
陰唄は、歌舞伎で舞台裏から聞こえる歌のことです。
陰唄 is a song heard from behind the stage in kabuki.