1.0JeopardyAnswers.orghttps://jeopardyanswers.orgjeohttps://jeopardyanswers.org/author/jeo/Previously he had built theremins but in 1964 introduced his first synthesizer - JeopardyAnswers.orgrich600338<blockquote class="wp-embedded-content" data-secret="9txfBp5Edn"><a href="https://jeopardyanswers.org/previously-he-had-built-theremins-but-in-1964-introduced-his-first-synthesizer/">Previously he had built theremins but in 1964 introduced his first synthesizer</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://jeopardyanswers.org/previously-he-had-built-theremins-but-in-1964-introduced-his-first-synthesizer/embed/#?secret=9txfBp5Edn" width="600" height="338" title="“Previously he had built theremins but in 1964 introduced his first synthesizer” — JeopardyAnswers.org" data-secret="9txfBp5Edn" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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