Johnnyswim performs at a Tiny Desk Concert in April 2014. Jim Tuttle/NPR hide caption

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Johnnyswim

Impossibly telegenic and charming, husband and wife Abner Ramirez and Amanda Sudano have the booming voices of great street buskers, but also the polished sparkle of natural-born stage performers.

Quilt performs at a Tiny Desk Concert in February 2014. Jim Tuttle/NPR hide caption

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Quilt

Interweaving harmonies and guitar lines from Anna Fox Rochinski and Shane Butler set the tone for these tunes — soft and benevolent, dreamy and quivering.

Federico Aubele performs at a Tiny Desk Concert in February 2014. Jim Tuttle/NPR hide caption

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Federico Aubele

The Argentine singer-songwriter uses his dark, husky voice to produce a specific effect in the songs he performs at the NPR music offices: Together, they jell into one impressionistic midtempo ballad.

Usman Riaz

A young Pakistani musician treats the guitar as a percussion instrument — with surprisingly shimmering results. He also performs a piano piece he wrote at just 16.

Courtney Barnett performs a Tiny Desk Concert in February 2014. Jim Tuttle/NPR hide caption

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Courtney Barnett

Barnett can tell you a story like she's your best friend, provided your best friend is a funny Australian poet. Hear three of her thoughtful, acerbic rambles, including the new "Depreston."

Tom Brosseau performs a Tiny Desk Concert in February 2014. Jim Tuttle/NPR hide caption

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Tom Brosseau

The unabashedly earnest and sentimental folksinger stops by the NPR Music offices for an intimate glimpse of three sweet songs from his new album, Grass Punks.

Aimee Mann and Ted Leo perform together as The Both at a Tiny Desk Concert in February 2014. Jim Tuttle/NPR hide caption

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The Both

Singer-songwriters Aimee Mann and Ted Leo often reside at opposite ends of the volume knob. What unfolds in this performance isn't compromise, though, so much as a creative challenge.

The Haden Triplets perform a Tiny Desk Concert in February 2014. Jim Tuttle/NPR hide caption

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The Haden Triplets

Separately, Petra, Rachel and Tanya Haden have worked on vastly different musical projects. But when they come together to cover classic country music, the result is a treat and a trip in time.

Joseph Calleja performed a Tiny Desk Concert November 26. Abbey Oldham/Abbey Oldham/NPR hide caption

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Joseph Calleja

He's a young tenor with an old-school style and all the world's top opera houses want him. Calleja's expressive shading and dynamic control hearken back to an earlier era — and he's funny.

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Diane Cluck

Watching Cluck perform jams the senses. It's almost easier to imagine some tiny spirit in her chest is controlling the action, turning a pitch wheel with one hand and a tone knob with the other.