Ondes Martenot
However, the Ondioline's sound possibilities are much more varied, compared to the Ondes Martenot, which can only produce a few variations of sounds. This is due to the Ondioline's filter bank, which features an array of 15 slider switches for various tones. Selected combinations of these switches can create sounds ranging from near-accurate recreations of symphonic instruments (oboe, French horn, etc.) to totally unique sounds of its own.