Platoon (film) Dye, who played Bravo company's commander Captain Harris, is a U.S. Marine Corps Vietnam War veteran who also served as the film's technical advisor. The movie is "Dedicated to the men who fought and died in the Vietnam War." The film score was by Georges Delerue. Music used in the film includes "Adagio for Strings" by Samuel Barber, "White Rabbit" by Jefferson Airplane, and "Okie From Muskogee" by Merle Haggard (which is an anachronism, as the film is set in 1967 but Haggard's song was not released until 1969). During a scene in the "Underworld," the soldiers sing along to
Adagio for Strings remarked that the piece "evokes a deep sadness in those who hear it". Many recordings of the piece have a duration of about eight minutes. The work is largely in the key of B minor. The "Adagio" is an example of arch form and builds on a melody that first ascends and then descends in stepwise fashion. Barber subtly manipulates the basic pulse throughout the work by constantly changing time signatures including , , , and . After four climactic chords and a long pause, the piece presents the opening theme again and fades away on an unresolved dominant chord.