Twenty Thousand Hertz

Listener Stories 2026 (Silver): Keyboard Clicks & Singing Forests

Our 2026 Listener Story competition continues with five more incredible listener-made pieces. In this Silver collection, you’ll hear the surprising craft behind mechanical keyboards, the natural sounds hidden in Indian ragas, and how learning a new language can transform noise into belonging.Twenty Thousand Hertz is produced by Defacto Sound.Subscribe on ⁠⁠⁠⁠⁠⁠⁠⁠YouTube⁠⁠⁠⁠⁠⁠⁠⁠⁠ to see our video series.Follow Dallas on ⁠⁠⁠⁠⁠⁠⁠Instagram⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠TikTok⁠⁠⁠⁠⁠⁠⁠, ⁠⁠Facebook⁠⁠, and ⁠⁠⁠⁠⁠⁠⁠LinkedIn⁠⁠⁠⁠⁠⁠⁠.If you know what this week's mystery sound is, tell us at ⁠⁠⁠⁠⁠⁠⁠⁠mystery.20k.org⁠⁠⁠⁠⁠⁠⁠⁠.Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠.Listener Links: Hear Leonardo Barrios’ music under the name Bardø on Spotify. Learn about Ross Maddox’s work testing the hearing of babies at maddoxlab.org. Explore Nathaniel Harrison’s work with Shore 3 Studios. Hear Vicki Hansen’s music under the name Indiajiva on Youtube and Spotify. Try NetSuite Next for free at netsuite.ai/20k.Shopify: Own your customer relationships. Own your revenue. Start with a free trial at shopify.com/20k

Colbert & Fallon: Mixing Music for Late Night TV

Mixing music for Late Night television means working fast, putting artists at ease, and delivering polished mixes under immense pressure. In this episode, the Music Mixers of The Late Show with Stephen Colbert and The Tonight Show Starring Jimmy Fallon swap stories from decades behind the console. They reveal performances that went sideways, why backing tracks can actually make their jobs harder, and what it’s like mixing everyone from Cynthia Erivo to Paul McCartney. Featuring Harvey Goldberg and Lawrence Manchester.Twenty Thousand Hertz is produced by ⁠⁠Defacto Sound⁠⁠.Watch Dallas' on-set videos with Harvey (The Late Show) and Lawrence (The Tonight Show).Follow Dallas on ⁠⁠⁠⁠⁠⁠⁠Instagram⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠TikTok⁠⁠⁠⁠⁠⁠⁠, ⁠⁠Facebook⁠⁠, and ⁠⁠⁠⁠⁠⁠⁠LinkedIn⁠⁠⁠⁠⁠⁠⁠.Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠⁠⁠⁠.If you know what this week's mystery sound is, tell us at ⁠⁠⁠⁠⁠⁠⁠⁠⁠mystery.20k.org⁠⁠⁠⁠⁠⁠⁠⁠⁠.Get three months of free payroll with Gusto at gusto.com/20k.Visit ⁠⁠⁠⁠⁠⁠quo.com/20k⁠⁠⁠⁠⁠⁠ for 20% of your first 6 months of business phone software.

Listener Stories 2026 (Bronze): AI Music & Coral Crackles

Twenty Thousand Hertz proudly presents the first five selections from our 2026 Listener Story competition. From AI-generated music, to the hidden crackle of coral reefs, to historic birdsong recordings, these bite-sized stories are crafted with curiosity and care.Twenty Thousand Hertz is produced by ⁠⁠Defacto Sound⁠⁠.Subscribe on ⁠⁠⁠⁠⁠⁠⁠⁠⁠YouTube⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ to see our video series.Follow Dallas on ⁠⁠⁠⁠⁠⁠⁠Instagram⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠TikTok⁠⁠⁠⁠⁠⁠⁠, ⁠⁠Facebook⁠⁠, and ⁠⁠⁠⁠⁠⁠⁠LinkedIn⁠⁠⁠⁠⁠⁠⁠.Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠⁠⁠⁠.If you know what this week's mystery sound is, tell us at ⁠⁠⁠⁠⁠⁠⁠⁠⁠mystery.20k.org⁠⁠⁠⁠⁠⁠⁠⁠⁠.Listener Links: Hear Maria Ordovas Montanez's work on the Out There podcast. Follow Rob Porter's Songbirding podcast. Follow Victor Sanchez's work with DC Producciones. Try NetSuite Next for free at netsuite.ai/20k.Shopify: Own your customer relationships. Own your revenue. Start with a free trial at shopify.com/20kVisit ⁠⁠⁠⁠⁠⁠quo.com/20k⁠⁠⁠⁠⁠⁠ for 20% of your first 6 months of business phone software.

Eurovision Song Contest: Inside the Gimmicks & Glamour

For millions of people, Eurovision is a cultural institution, and one of the biggest live television events on Earth. But for many Americans, it remains a complete mystery. In this episode, producer Andrew Anderson takes Dallas and Grace on a joyful crash course through the history, music, controversies, and glorious absurdity of the Eurovision Song Contest. Along the way, they discover which music superstars got their start in Eurovision, how receiving “nul points” can ruin or launch a career, and what this competition reveals about Europe itself. Featuring “Doctor Eurovision” Paul Jordan.

John Williams: A Composer’s Legacy

In our last episode, we followed composer John Williams from his childhood to his 1970s run with Steven Spielberg and George Lucas. Now, we pick up the story as John enters an era of seemingly impossible success… from Raiders of the Lost Ark to Home Alone, Jurassic Park, Schindler’s List, and beyond. In this episode, we explore how John revived the grand orchestral score, conquered the classical music world, and crafted melodies that millions of people can instantly recognize. Along the way, journalist Tim Greiving reveals the habits, quirks, and creative brilliance of this living legend. Twenty Thousand Hertz is produced by ⁠⁠⁠Defacto Sound⁠⁠⁠. Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠. Subscribe on ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠YouTube⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ to see our video series. If you know what this week's mystery sound is, tell us at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠mystery.20k.org⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠. Follow Dallas on ⁠⁠⁠⁠⁠⁠⁠⁠Instagram⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠TikTok⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠Facebook⁠⁠⁠, and ⁠⁠⁠⁠⁠⁠⁠⁠LinkedIn⁠⁠⁠⁠⁠⁠⁠⁠. Find out how you can get the iPhone 17 Pro at no cost with an eligible trade in at ⁠⁠att.com/iphone⁠⁠, or by visiting an AT&T store. Visit ⁠⁠⁠⁠⁠⁠⁠quo.com/20k⁠⁠⁠⁠⁠⁠⁠ for 20% of your first 6 months of business phone software. Sign up for a one-dollar-per-month Shopify trial at ⁠⁠⁠⁠⁠shopify.com/20k⁠⁠⁠⁠⁠. Learn more about your ad choices. Visit megaphone.fm/adchoices