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Optigan.com has introduced four new sound discs for the Optigan 'optical organ', a keyboard from 1971 that played back optically-encoded audio samples.… <a class="more-link" href="http://www.synthtopia.com/content/2020/08/18/vintage-optigan-keyboard-gets-four-new-sound-discs/">Read More <span class="screen-reader-text">Vintage Optigan Keyboard Gets Four New Sound Discs</span></a>
http://www.synthtopia.com/content/2020/0...und-discs/