The Tsuur is a vertical pipe-shaped wooden wind instrument with three fingerholes.

UNESCO: Culture

Before, during and after the performance, musicians play a variety of traditional melodies on a wind instrument known as a gralla, setting the rhythm to which the tower is built.

UNESCO: Intangible Cultural Heritage

"It's the only other wind" instrument "in the show, " he says.

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In 2009, American cellist Yo Yo Ma mimed his performance at President Obama's first inauguration, saying the freezing temperatures and wind might have affected his instrument live.

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The vibrations of the lips, focused and amplified by the mouthpiece and directed into the tube, cause the column of air inside the tube to vibrate, and as in all wind instruments, the vibrating air column produces the sound of the instrument.

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