The Sadness -

There are existing musical "pieces" titled or themed around this:

Depending on your intent, "The Sadness" can refer to a visceral horror film, a specific musical track, or the universal human emotion. Horror Film Concept The Sadness

: A remix piece by the artist Onefin, originally from Pokémon Super Mystery Dungeon , which uses solemn keys like G minor and F minor to evoke deep melancholy. There are existing musical "pieces" titled or themed

: Since the film is heavily inspired by the comic series Crossed , a piece could imagine the final moments of civility before the urban chaos erupts. a specific musical track