- The iconic "Avengers Theme"
that was used in every Avengers movie. The repeating motif that starts at 1:06 is epic and full of energy.
- Tunnel Chase begins the movie with thrills and suspense, ending with a tag of the title theme.
- Assemble augments an already tense battle in New York with a mix of bombastic horns, strings, and timpani. It isn't until Banner (who earlier emerged from a pile of rubble) arrives that the piece goes into a decrescendo. At 4:10 as Banner walks forward, the strings picks up again along with some subtle timpani, building to a bombastic prelude that then transitions into the Avengers fanfare - leading to the iconic shot of the original Avengers "reloading" their weapons. This prelude makes a return later in the franchise.
- One Way Trip plays partially as the heroes enact the plan that ultimately saves the day, with equal parts sorrow, solemnity, and acceptance.
- A Promise adds a beautiful acoustic guitar as the heroes settle after their victory, before one final triumphant reprise of the main theme.
- The trailer's use of Nine Inch Nails' "We're In This Together" is a perfect musical depiction of the team's fostered camaraderie in the face of danger.
- Soundgarden's "Live to Rise" plays over the end credits; it's an awesome rock song and their first new song since reforming in 2010.
