Experimental musical instrument including intonarumori ("intoners" or "noise machines"), to create "noises" for performance. Unfortunately, none of his original intonarumori survived World War II. Replicas are being made though. Léon Theremin was a Russian inventor, most famous for his invention of the theremin around 1919–1920, one of the first electronic musical instruments. The Ondes Martenot is another early example of an electronic musical instrument. The luthéal is a type of prepared piano created by George Cloetens in the late 1890s and used by Maurice Ravel in his "Tzigane" for luthéal and violin. The instrument can produce sounds like a guitar or a harmonica,
Rubab (instrument) is attached partway down the neck, similar to the fifth string of the American banjo. Rubab (instrument) Rubab, robab or rabab (, , , , "rubāb", Tajik and Uzbek "рубоб") is a lute-like musical instrument originating from central Afghanistan. The "rubab" is mainly used by Pashtun, Tajik, Turkish, Kashmiri, Baluch, Azerbaijani, and Iranian Kurdish classical musicians. Rubab is one of the national musical instruments of Afghanistan. It has "proliferated throughout West, Central, South and Southeast Asia." Rbab () is an Arabic word. According to the Arabic diacritics, vowels between consonants - apart from "Alif" (Aleph) are not written but articulates.