Greg Saunier (left) and Sean Lennon of the band Mystical Weapons. Courtesy of the artist hide caption

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The Polyphonic Spree performs a Tiny Desk Concert. Lauren Rock/NPR hide caption

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The Polyphonic Spree: Tiny Desk Concert

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Members of the Victorian State Youth Brass Band of Australia during an attempt to set a world record by playing Christmas carols for 40 straight hours. William West/AFP/Getty Images hide caption

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