What is the film technique called where the music doesn't suit the visual scene?

The film technique where the music does not match the visual scene is known as "contrapuntal music." This approach creates a dissonance between what is heard and what is seen, often adding complexity to the emotional impact of a scene. By juxtaposing mismatched audio and visuals, filmmakers can evoke surprise, irony, or a deeper thematic resonance. This technique challenges viewers’ expectations and enhances the storytelling experience.