What Is a Movie Soundtrack?

The soundtrack is the audio that accompanies a film, including dialogue, music and sound effects. A movie soundtrack is all the recorded audio that accompanies a film, though the term is used in a few overlapping ways.

The original meaning

Technically, the soundtrack is the audio track physically or digitally synchronized with the picture. It includes dialogue, sound effects, ambient noise, and music, all mixed together.

The everyday meaning

Most people use “soundtrack” to mean the music from a film, usually in one of two forms:

  • Score: Original instrumental music composed specifically for the film, often performed by an orchestra or electronic ensemble. It’s designed to support the emotion, pacing, and tone of scenes. Think of the themes composed by John Williams or Hans Zimmer.
  • Licensed or compilation songs: Existing songs (or sometimes newly written ones) chosen to play during certain scenes, such as a pop song over a montage or a needle drop in a character’s car.

Soundtrack albums

Studios often release a “soundtrack album” for sale or streaming. It might contain the score, the featured songs, or a mix of both. Some albums include tracks that never appear in the film, or leave out tracks that do, so the album and the movie’s actual audio aren’t always identical.

What it does

Music shapes how you feel about what you’re seeing. It can build tension, signal romance, foreshadow danger, or make a quiet moment hit harder. Many films are hard to imagine without their music, and some soundtracks become more famous than the movies themselves.

Film reel with music score sheet and headphones
Orchestra recording a movie score
Soundtrack album with vinyl record and headphones

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