As with the previous three movies, John Williams provides the score for Indiana Jones and the Kingdom of the Crystal Skull. The soundtrack was released on CD by Concord Records on May 20, 2008. The liner notes include a letter from Steven Spielberg. The tracks in chronological order (according to the movie) would go 6, 8, 7, 15, 12, 14, 11, 9, 5, 10, 16, 13, 17, 18 and 19. 2, 3, and 4 are just bonus tracks heard in concert theme, whereas 1 is just The Raiders March from Raiders of the Lost Ark