"The Swan" is the famous 13th movement from Camille Saint-Saëns's Carnival of the Animals and probably the most popular encore in the cello repertoire.

Swap the piano accompaniment for a harp and you've got a perfect party piece for the Vancouver duo Couloir, comprising cellist Ariel Barnes and harpist Heidi Krutzen. We invited them to CBC Vancouver's Studio One to play it, and as a bonus, they treated us to Heitor Villa-Lobos's "Song of the Black Swan," composed in response to Saint-Saëns's massive hit.

Watch both performances below:

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