The festival which is celebrated every three years …#yodellingfestival #swiss

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Every three years, a Swiss Yodelling Festival is held and attracts around 10,000 and more yodellers, flag-throwers, and alphorn players.

The most Swiss of sounds, the yodel, probably originated in the Stone Age as a call from mountain to mountain; choirs started singing yodelling songs in the 19th century and today there are around 2,000 Swiss yodelling songs. You can hear Switzerland’s best yodellers at the Eidgenössisches Jodelfest. This four-day yodelling Swiss festival and competition brings together some 15,000 yodellers every three years, each time in a different city.

Source: http://www.expatica.com/ch/about/Swiss-festivals_106810.html, https://www.factretriever.com/switzerland-facts