ðə mˈuːɡ sˈɪnθəsˌaɪzɚ wɛnt ˌɔn sˈeɪl ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɛvən ænd ðə djuːˈɛt pˈɛɹi ænd kˈɪŋsli ðeɪ bɪkˌeɪm ðə fˈɜːst tə mˌeɪk ɹᵻkˈoːɹdɪŋz wɪððə mˈuːɡ sˈɪnθəsˌaɪzɚ, pɹɪdˈeɪɾɪŋ nˈaɪntiːnhˈʌndɹɪd sˈɪksti ˈeɪt ˈælbəm swˈɪtʃtˌɔn bˈɑːx baɪ wˈɛndi kˈɑːɹloʊz ðæt pˈɑːpjʊlɚɹˌaɪzd ðə mˈuːɡ sˈɪnθəsˌaɪzɚ.
The Moog synthesizer went on sale in 1967 and the duet Perrey and Kingsley they became the first to make recordings with the Moog synthesizer, predating 1968 album Switched-On Bach by Wendy Carlos that popularized the Moog synthesizer.