Original Motion Picture Soundtrack (Score OST) from the movie Back To The Future Part III.
Music composed by Alan Silvestri.

Back To The Future Soundtrack
Back To The Future II Soundtrack

Source: Back To The Future Part III Movie (Back To The Future 3)
Style: Original Motion Picture Score
Music by Alan Silvestri
Label: Varese Sarabande
Released: September 27, 2013 (MP3); May 29, 1990 (CD)

Back to the Future Part III is a 1990 American science fiction Western film, and the third and final installment of the Back to the Future trilogy. The film was directed by Robert Zemeckis, and starred Michael J. Fox, Christopher Lloyd, Mary Steenburgen, Thomas F. Wilson and Lea Thompson. The film continues immediately following Part II. While stranded in 1955 during his time travel adventures, Marty McFly (Fox) discovers that his friend Dr. Emmett “Doc” Brown, trapped in 1885, was killed by Biff Tannen’s great-grandfather Buford. Marty decides to travel to 1885 to rescue Doc.