Featured in Ghostbusters, There Will Be Blood, The Black Cauldron and Heavy Metal. The Ondes Martenot is one of the earliest electronic instruments, with origins in the First World War. It creates a haunting, melancholic sound, and is described as ‘nerve-jangling when gleefully abused’.
As a cross between an organ and a theremin, it has a four-octave keyboard with moveable keys that create vibrato when wiggled and a glass lozenge shaped volume control. The Ondes Martenot has been featured in popular and classical music as well - check out this particularly creepy piece by .