The experimental score by late French composer Maurice Jarre is dynamic and haunting with use of piano, synth, orchestral cues, and droning electronic soundscapes that feature reverberating horns, chants, tribal woodwinds, and chasing percussion. The avant-garde score is atmospheric and melancholy without sacrificing melody. It features seamless transitions that reflect Jacob’s loneliness, grief, nightmares, and horrific hallucinations.