Scottish singer, songwriter and essayist Karine Polwart seldom comes stateside, eschewing air travel to reduce her carbon footprint. But on a rare, recent visit, she stopped in D.C. for a Tiny Desk.

Gary Clark Jr.

Tiny Desk Concerts from NPR Music feature your favorite musicians performing at All Songs Considered host Bob Boilen's desk in the NPR office. Hear Wilco, Adele, Passion Pit, Tinariwen, Miguel, The xx and many more. This is the audio version of the podcast. A video version is also available.