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,
Berlin Musical Instrument Museum 1984, the museum has been located in a Wisniewski-designed building at the Kemper Platz, next to the Berlin Philharmonic on the Kulturforum. Today there are over 3,200 instruments in the collection and about 800 exhibits are presented in permanent exhibition. Those instruments that are still playable are played regularly. Today the Musical Instrument Museum (MIM) is part of the State Institute for Music Research, under the auspices of the Prussian Cultural Heritage Foundation. The Musical Instrument Museum (MIM) and the State Institute for Music Research (SIM) form a unit in Berlin. Their common building was constructed between 1979 and 1984