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off from what he thought when he was introduced to freestyle rap as a kid.

"What's the trick?" Mack recalls thinking. "I couldn't believe it was real."

Freestyle rapping is the art of improvising lyrics and adapting them to a beat. Many rappers freestyle, but few take it to the level that Mack does.

Mack weaves rap lyrics together using any random prompt: word suggestions from his audience, a street sign that may have caught his attention and even people's clothing. A spectator of Mack's may find their favorite hat featured in a line.

And he can go for hours.

On Wednesday, he'll go for 10 hours straight on his YouTube channel. It's how he's celebrating that his channel recently hit 1 million subscribers.

"What's so cool about freestyling is once you master the basic techniques," Mack tells NPR's Morning Edition, "it's kind of infinite. As long as someone is feeding me something to incorporate, I can kind of do it forever." (Mack also shared his talents with NPR: a freestyle rap using the words Morning Edition, NPR and "This is NPR News." Listen below.)

Harry Mack's 'Morning Edition' Rap

Mack, 31, started his freestyle journey young. He began developing his craft at 12, and he cites MC Supernatural as well as Wayne Brady among his influences.

He first went viral in 2017 for his Venice Beach Freestyle video, where, armed with a portable speaker, he rapped about beachgoers. Over the next few years he freestyle for the likes of platinum-selling artist Joey Bada$$, Kendrick Lamar and Ellen DeGeneres.


But Mack says some of his most rewarding freestyles came on the video chat site Omegle, which pairs random people. Mack freestyles with Omegle users for his YouTube channel.

"I thought that's all it was going to be, that it was going to be maybe like a gimmick or something that I do once or twice for fun," Mack says. "I've been blown away by the reception to it and also by the potential for making real emotional connections with other human beings."

That connection is important to Mack, who says freestyling is a collaboration between himself and the audience.

"I mean, it lifts me up, it inspires me to no end, and it's so exciting, it makes me feel like I'm doing what I'm meant to do," he says. "It makes me feel like I'm living out my purpose. It makes me feel complete as a human being."

Ziad Buchh and Steve Mullis produced and edited the audio story.

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Why is 104.9 becoming an NPR station?

104.9 FM has been purchased by Northern California Public Media. The former KDHT is now KRCB FM. The frequency has been changed, by permission of the FCC, from a commercial station to a non-commercial station. NorCal Public Media wanted to acquire a larger, more powerful radio frequency, and Amaturo Sonoma Media Group was willing to sell 104.9 to NorCal Public Media.

Why did KRCB need another signal?

The former KRCB FM Radio 91 signal covers a very small area, and only a portion of Sonoma County. KRCB FM listeners have made it clear over the decades that what they wanted most from KRCB was to expand the geographic reach and signal strength of the public media news and music service. Over the course of two years, NorCal Public 



KRCB 1049 radio logoBrowse around our site and you'll see a few ways you can join in the effort to make KRCB 104.9 a great community radio station for Sonoma County. You can record a message that we play on-air, give us some new ideas, and keep abreast of what we're doing. New ways to engage with us our coming soon.
But there's an old fashioned one that's really important to us: become a member! We're making a big commitment to serving Sonoma County better, and while we really do want you to listen, and participate, helping pay for all of this would be really helpful too! Any amount helps, and we've got lots of cool gifts including some great CDs curated by our DJ Doug Jayne.
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“Sonoma County Baby” began in 2013 as a way to connect new Sonoma County mothers with the history of the county. In cooperation with Sutter Health, a nice book was published that featured the stories of several dozen Sonoma County families, describing how they each came to Sonoma County. The book was given to new moms. The project’s website is here:
Now, we want to put stories like this on KRCB-FM, Sonoma County’s NPR station. How and when did your family come to Sonoma County? Does your story include some old Sonoma County landmarks that some of us might remember? What was interesting about it? Finding the interesting part is important! These recording are all short, less than a minute or under 100 words. That’s not enough time to tell the whole story—just the highlights. Here's a sample script that’s about the right length. Click "Read More" to hear what others have submitted.
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Be on KRCB 104.9...answer this month's "Talk to Me" question: What does Sonoma County need that it doesn't already have? 
You can do a recording right from your computer or smartphone, but please use an external microphone (ear buds are good enough). Don't worry, you can try as many times you like until you get a "good take." We won’t hear any of the bad ones. After you finish, the page will give you a chance to listen and decide if you like it. Once you get a good one, you'll be asked for your name and email address. Then hit "Send.” (Click "reset" if you would rather try again.)
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Each week, Santa Rosa-based travel writer Dana Rebmann introduces us to great local spots to visit. Listen on-air for the latest. Or click here:
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Listen to the Sonoma County Birdwatch!

fullerThroughout the week, we play short segments about what birds are out in Sonoma County and what they sound like, from Harry Fuller. Harry spent his working career as a TV and Internet newsman in the Bay Area.  He’s been leading bird trips and writing about birds for thirty years.  He has written three natural history books: Freeway Birding, I-5 San Francisco to Seattle; San Francisco’s Natural History, Sand Dunes to Streetcars; Great Gray Owl in California, Oregon & Washington. He blogs regularly about birds:  And he frequently leads birding trips on the Pacific Coast. Check him out at

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