"Radio got a lot more researched and scientific, and the result of that was that radio stations started using shorter and shorter jingles." - JONATHAN WOLFERT, Radio Station Jingles: 80 Years of Earworms, Twenty Thousand Hertz #JonathanWolfert

"That jingle has been used by radio stations everywhere." - JONATHAN WOLFERT, Radio Station Jingles: 80 Years of Earworms, Twenty Thousand Hertz #TwentyThousandHertz #NationalRadioDay #JonathanWolfert

"And when you're using Morse code, you want your message to be as concise as possible." - JONATHAN WOLFERT, Radio Station Jingles: 80 Years of Earworms, Twenty Thousand Hertz #TwentyThousandHertz #MorseCodeDay #JonathanWolfert

"I think radio station ID jingles are going to continue to be used as long as there's radio stations, really." - JONATHAN WOLFERT, Radio Station Jingles: 80 Years of Earworms, Twenty Thousand Hertz #TwentyThousandHertz #WorldRadioDay #JonathanWolfert