A thousand years ago, Gaelic monks sang and chanted inside Iceland’s vast series of caves. Recently, a group of folk singers made the trek inside one of these caves to test out the acoustics. Here’s what it sounded like.

The cave used by these singers is called H√≠tardalur, and it‚Äôs one of several caves that were used by the monks around the 9th Century AD. According to the creator of the video, Sigurbo√įi Gr√©tarsson, it took some climbing to reach the cave entrance, and its opening was quite hidden.

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These singers are engaging in a form of throat singing (also known as overtone singing) familiar to other regions, including the Inuit of North America and the Tuvan throat singers of Mongolia.

H/t Digg Video!


Contact the author at george@io9.com and @dvorsky. Top video by Sigurbo√įi Gr√©tarsson/YouTub

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