While Elmer Bernstein’s 'Ghostbusters' score is mostly known for its catchy themes, it features the Ondes Martenot as a primary tool for the supernatural elements. The Ondes Martenot is an early electronic instrument that produces a spooky, wavering tone. Bernstein used it specifically to represent the ghosts and the god Gozer. Its ability to slide between pitches gave the 'ghostly' sounds a playful yet eerie quality that matched the film’s blend of comedy and horror. The instrument’s inclusion helped ground the high-tech 'proton pack' gadgetry in a classic cinematic tradition. This shows how movie legends of the 80s still relied on the 'shimmering' sounds of 1920s electronic instruments to create a sense of the paranormal.