Bob Boilen

It's as if the pianos were haunted. Somewhere about midway through this Tiny Desk, as Icelandic composer Ólafur Arnalds performed on his electronic keyboard, two upright pianos were playing lilting melodies behind him, absent any performer at the keys. And yet these "ghosts," along with Ólafur's band of strings and percussion, put together some of the most beautiful music I've heard at the Tiny Desk, made all the more mysterious through its presentation.

NOTE: Each day this week we'll be rolling out a series of videos from Sylvan Esso that comprise the duo's upcoming visual EP, Echo Mountain Sessions.

We watched more than 6,000 videos. Ten judges weighed in. Now, the 2017 Tiny Desk Contest has a winner.

Today we're thrilled to announce that the winner of the Tiny Desk Concert Contest is Fantastic Negrito.

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