Any movie fans out there? Hildur Guðnadóttir won an Oscar for Best Original Music for the soundtrack of Joker (2019) — her work led me to wonder which technical aspects make a song a catalyst for emotions.

What is the role of music in film?
Music often functions as an emotional bridge between us and the world. In film, it helps us feel the emotions of a scene more profoundly.
Why is the Joker soundtrack so emotional?
The track Bathroom Dance is in C#m — a minor key that induces despair. The tempo is Lento, evoking slowness and profound reflection.
