Stephen Thompson

Given the timing of Kacey Musgraves' appearance in the NPR offices — the Supreme Court had legalized gay marriage across America mere hours earlier — it was inevitable that the singer would trot out "Follow Your Arrow," the most anthemic go-your-own-way jam on Musgraves' 2013 debut album, Same Trailer Different Park.

We get a lot of mail at NPR Music, and alongside the mail-order grapefruits that have us pondering the nature of the mail-order-grapefruit business is a slew of smart questions about how music fits into our lives. This time around: thoughts on pop music's staying power.

Steven F. writes via Facebook: "Which current music stars will be remembered 20 or 50 years from now, which will be forgotten, and why?"

There are so many quick-twitch responses to this question — and virtually all of them are, at least on some level, wrong.

In a raucous and revealing panel discussion at New York City's Ace Hotel, the stars and creators of Comedy Central's Broad City interviewed all three members of the newly reunited rock band Sleater-Kinney Friday night.

"You know I wrote this for you, baby — you know that." "Oh, yeah, sure."

Pat Benatar and Neil Giraldo do mock-bickering as well as any long-married couple – which, of course, is exactly what they are. More notably, they've formed a commercial and creative juggernaut spanning more than three decades, with the Brooklyn-born Benatar singing and Giraldo working as her guitarist, producer and fellow songwriter.

Tiny Desk Concerts often require creative and logistical transformations, from electric bands going acoustic to big bands squashing into a tiny space to many players gathering around a single microphone. But the setting is particularly challenging for vocalists, especially those accustomed to heavy production, effects or — in the case of recent guest T-Pain — generous dollops of Auto-Tune.

We get a lot of mail at NPR Music, and alongside the unsolicited phone books we toss straight into the recycling bin is a slew of smart questions about how music fits into our lives — and, this week, thoughts on words we'd prefer never to hear associated with music.

Eleanor writes via email: "You've tweeted about your hatred of the word 'songstress.' Writing about music is tricky, but what words do you think should ALWAYS be avoided, and why?"

Newport Folk Festival programmers like to close their lineups on a note of uplift; to send fans to the exits feeling elated and moved. On that front, they couldn't have done much better than the great Mavis Staples, whose titanic career has spanned more than 60 years. From her time in the best-selling gospel family band The Staple Singers through her role in the civil rights movement, she's been a face of change and a voice behind some of the most powerful songs in modern history.

There aren't a whole lot of failures on the resume of Jeff Tweedy, who co-piloted the groundbreaking alt-country band Uncle Tupelo in the '80s and early '90s, then multiplied its popularity as the leader of Wilco. In that band, Tweedy's refusal to compromise his vision led to his greatest commercial success, vaulting idiosyncratic records like Yankee Hotel Foxtrot and A Ghost Is Born into the canon.

Far removed from his days as a white-knuckled teenage prodigy in Bright Eyes, Conor Oberst has settled into his 30s as a wise and wizened elder statesman. He's come to channel his youthful intensity into real showmanship, especially onstage, while continuing to mine powerful emotions and a sort of fearless poignancy in his songwriting.

The Newport Folk Festival sells out months before its lineup is announced, but fans aren't entirely in the dark: Most know there's at least a 50 percent chance that the lineup will include the countrified California roots-rock band Dawes. Led by brothers Taylor and Griffin Goldsmith, Dawes is a heartwarming crowd-pleaser, both on stage and on albums like last year's Stories Don't End.

The Sunday lineup of 2014's Newport Folk Festival will take thousands of fans to church, as it opens with the Berklee Gospel & Roots Choir and closes with the gospel and R&B titan Mavis Staples.

In the past, the Berklee Gospel & Roots Choir has been employed as a sort of Newport Folk Festival palate-cleanser: a way to kick off the day with something kind, approachable, reverent and rooted in many folk traditions. This year, with Mavis Staples on top of the bill, the group, which opens the proceedings on Sunday, functioned as both and a theme-setter.

John McCauley's ragged roots-rock band Deer Tick has become a Newport Folk Festival staple, along with McCauley's frequent collaborators in Dawes and Delta Spirit.

Nickel Creek's Sara Watkins, Sean Watkins and Chris Thile started out as child prodigies, then built their band into a Grammy-winning commercial force. At the height of their success, though, the three decided to break up and pursue other projects — albeit temporarily, as the title of 2007's "Farewell (For Now) Tour" suggested.

Equal parts rowdy and loving, the husband-and-wife South Carolina duo Shovels & Rope radiates knockabout charm. Cary Ann Hearst and Michael Trent are equally adept at crooning moonily while locking eyes and tearing through blistering folk-rock anthems without seeming to take a breath. Hearst and Trent often swap instruments, giving their sets a freewheeling, unpredictable quality.

You can bundle it up in MP3s and send it zinging through the ether, but Pokey LaFarge's music still seems as though it has emerged from the dustiest 78 at the thrift shop. LaFarge is a man out of time and a true wanderer, with the vintage clothing to match, but he never seems like a mere novelty act: His songs are too sturdy, with too much infectiously zippy energy, to feel anything but authentic.

Aoife O'Donovan got her start in a pair of folk-leaning groups, Sometymes Why and Crooked Still, the latter of which became one of the country's top modern string bands.

Cinematic sweep is hardwired into Band of Horses' sound: Ben Bridwell's voice always seems to be echoing through some canyon or other, whether the guitars are chiming to the rafters or drifting along drowsily. The group's most recent records, Infinite Arms and Mirage Rock, have tended toward the latter half of that equation, but Band of Horses remains versatile in tone, especially onstage.

Jenny Lewis' voice has helped provide a soundtrack to the last 15 years, but it's not part of one specific sound: She's sung heartsick ballads and spiky rock (in Rilo Kiley), summery surf-pop (in Jenny and Johnny), winsome electro-pop (in

A thumbnail description of The Devil Makes Three — "acoustic string-band music with no drummer" — makes its music seem old-fashioned, even quaint. But the California trio plays with boozy aggression and unhinged intensity. If there were a Newport Punk Festival (and, really, why shouldn't there be?), The Devil Makes Three wouldn't be out of place in its lineup, amplification be damned.

There's ambition rooted in the pursuit of personal glory, and then there's creative ambition, rooted in a desire to do what hasn't already been done. Anais Mitchell is a folksinger with a kind, approachable voice.

From its legendary beachfront locale to its celebrations of folk music's past, the Newport Folk Festival draws on more than half a century of celebrated traditions. But it's also an event in which folk's boundaries are tested: This is, after all, where Bob Dylan famously plugged in an electric guitar 49 years ago, in the process enraging the purists in the crowd.

The Newport Folk Festival has been around for more than half a century now — this is its 55th year, to be exact — and the event now routinely sells out months before its lineup is even announced. And why shouldn't it?

For 23-year-old singer-guitarist Lydia Loveless, gritty, countrified blues-rock is a palette broad enough to include literary drama — complete with fatalistic references to the doomed French poets Paul Verlaine and Arthur Rimbaud — and a plainspoken plea for oral sex.

Once you're able to see this three-song set by the band Johnnyswim, NPR Music will have published exactly 350 Tiny Desk Concerts — so we've developed a pretty good sense of when a set will stick in our memories for a while. We intuited, for example, that Adele was about to become a dominant force shortly after she breezed into our offices.

In pop-music circles, Suzanne Vega is known almost entirely for two songs from the late 1980s: the child-abuse ballad "Luka" and a song that launched literally dozens of dance remixes, "Tom's Diner." But Vega has been making vital, inventive music the entire time — much of it folk-based, though her sound has taken many smart detours along the way — and is about to put out her first album of original material in seven years, Tales From the Realm of the Queen of Pentacles.

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Part of the Twin Cities hip-hop collective Doomtree, rapper, singer, poet and songwriter Dessa divides her time between singing and rapping, often landing on a spoken-word splitting of the difference.

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