Nate Chinen

The blues have traveled far and wide over the last century — exerting a vast cultural influence worldwide, yielding myriad offshoots, and generating fortunes for some of the biggest musical acts of our time. But it's also still the product of local conditions, and bound by hardscrabble local concerns.

On this episode of Jazz Night in America, we'll go to Clarksdale, Miss., to get a temperature reading at ground level, where struggling musicians are finally beginning to reap the benefits of a recent wave of blues tourism.

Denise Eileen Garrett was only 3 years old when her family moved to Flint, Mich., from Memphis, Tenn. This was long before she became Dee Dee Bridgewater, jazz-vocal superhero — to say nothing of a mother, a Tony- and Grammy-winner or an NEA Jazz Master. But Memphis left an impression on the little girl, subtle but persistent, somewhere in her psyche.