Dubreq Stylophone 
 The Dubreq Stylophone was a miniature electronic musical instrument invented in 1967 
academickids.com/encyclopedia/index.php... Hammond organ 
 The Hammond organ is an electronic organ which was designed and built by Laurens Hammond in April 1935 
academickids.com/encyclopedia/index.php... Drum machine 
 Drum machine is a device designed to imitate drums and/or other percussion instruments 
academickids.com/encyclopedia/index.php... Telharmonium 
 The earliest purely electronic musical instrument was the Telharmonium.. 
academickids.com/encyclopedia/index.php... Ondes Martenot 
 The Ondes Martenot is an early electronic musical instrument with a keyboard and slide invented in 1928 by Maurice Martenot 
academickids.com/encyclopedia/index.php... Mellotron 
 The Mellotron is an electromechanical polyphonic keyboard musical instrument originally developed and built in Birmingham, England 
academickids.com/encyclopedia/index.php... Synthesizer 
 A synthesizer is an electronic musical instrument designed to produce artificially generated sound 
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