A second opinion

Looking at this clip again, I see that we can also gather information about the story, and more specifically the setting, from the music in the background at the beginning. It has a slow, bluesy jazz feel, with trumpets playing in fifths over the rest of the ensemble. This is pretty indicative of both a time and place: 1940's New York. New York was one of the centers of Jazz music at the time and it heavily influenced by big bands and blues quartets. The trumpets give the music a very militaristic feel that perhaps mirrored the world war happening at the time. Just goes to show how expressive music can be.