In opera terminology, which type of music is described as music that characters know they are singing?

• A. Diegetic music
• B. Non-diegetic music
• C. Concerted music
• D. Recitative

Answer: (A)

Diegetic music is music that exists within the world of the story and is heard by the characters themselves. In opera, when a character sings a song as part of the action and the other characters respond to it, everyone involved knows that singing is happening within the plot. That’s why this term fits best for music the characters know they are singing.

Non-diegetic music, by contrast, is sound that the audience hears but the characters do not, like an atmospheric underscoring. Concerted music refers to a style of ensemble writing where singers and orchestra work together, not to whether the music is part of the story’s world. Recitative is a speech-like singing style used to advance the plot, not a specific description of whether the characters are aware they’re singing in the moment.