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,
Clapper (musical instrument) The term is not to be confused with bell clapper. In music, a whip or slapstick is a clapper (percussion instrument) consisting of two wooden boards joined by a hinge at one end. When the boards are brought together rapidly, the sound is reminiscent of the crack of a whip. It is often used in modern orchestras, bands, and percussion ensembles. There are two types of whips. The first has two planks of wood connected by a hinge, with a handle on each. The percussionist holds the instrument by the handles and hits the two pieces of wood together, creating