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In page Music technology (electronic and digital):

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  • 1944 : Halim El-Dabh produces earliest electroacoustic tape music[1][2]
  • 1952 : Harry F. Olson and Herbert Belar invent the RCA Synthesizer[citation needed]
  • 1952 : Osmand Kendal develops the Composer-Tron for the Marconi Wireless Company[citation needed]