I'm Jenny from Ohio.

I'm Graham from Oxford, England.

Hi, I'm Nathan from Planet Earth.

The Sound of Young America is an independent production supported by listeners like me.

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I'm Jesse Thorne, live on tape from My House in Los Angeles.

It's the Sound of Young America from MaximumFund.org and PRI, public radio, international.

It's the Sound of Young America.

I'm Jesse Thorne.

My guest, Greg Kot, is the music critic for the Chicago Tribune, where he's been now for almost 20 years.

He's also the co-host of the public radio program Sound Opinions,

and now the author of RIPT, How the Wire Generation Revolutionized Music.

Greg, welcome to The Sound of Young America.

Great to have you on the show.

I'm glad to be here, Jesse. Thank you.

So, what do you see as being the start of this story that you tell in the book?

Well, I basically looked at the last 10 years.

I think there's roots in it before that, but I think the real change that we're talking about here,

I believe we're living in a historical time where the way music is made,

a manufactured, distributed, consumed is changing forever.

We're never going to go back.

So, the transition from the 20th century business model to the 21st century model,

...