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,
Uhadi musical bow including weddings and varies rite of passage ceremonies. Uhadi performances customarily take place in the afternoons and evenings, usually indoors. There are very few uhadi players in the 21st century, however,acclaimed African musicians like Madosini Manqineni and Dizu Plaatjies have made uhadi playing an essential aspect of their musical repertoires. Contemporary uhadi players write and create their own songs; however, traditional ritual songs are not changed out of respect for their ritual significance. Uhadi musical bow The Uhadi musical bow is a traditional Xhosa musical instrument. It is a large unembraced musical bow which is attached to a resonator and