Martin Hayes and Dennis Cahill perform a Tiny Desk Concert on Feb. 25, 2013. Gabriella Demczuk/NPR hide caption

toggle caption Gabriella Demczuk/NPR

Tiny Desk

Martin Hayes & Dennis Cahill

Watch one of the best fiddlers on the planet and a subtle guitar master work their magic.

Becky Lettenberger/NPR

Tiny Desk

Souad Massi

A soulful yet steely singer-songwriter from Algeria charts her own course in these four songs.

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