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,
Bartola Musical Instrument Company manual instrument still in use at St. Mary Parish of Oshkosh, Wisconsin. Bartola Musical Instrument Company The Bartola Musical Instrument Company of Oshkosh, Wisconsin, USA, was a producer of theater pipe organs during the age of silent movies. The company was founded in 1918 by Dan Barton, who was from Amherst, Wisconsin. The sixth largest builder of theater instruments in the nation, Bartola focused almost exclusively on the Midwest market. Barton later recalled, "We decided to work only a limited territory so we could give prompt service to all our installations. [This territory included] Wisconsin, Illinois, Michigan, Iowa, Indiana and