I have never heard Greenlandic being spoken. It’s like nothing I’ve heard before. To my untrained ears, it sounds like the vocal track is being run backwards.
Greenlandic is an Eskimo–Aleut language spoken by about 57,000 Greenlandic Inuit in Greenland. It is closely related to the Inuit languages in Canada such as Inuktitut. The main variety, Kalaallisut or West Greenlandic, has been the official language of the Greenlandic autonomous territory since June 2009; this is a move by the Naalakkersuisut (government of Greenland) to strengthen the language in its competition with the colonial language, Danish. The second variety is Tunumiit oraasiat or East Greenlandic. The Thule Inuit of Greenland, Inuktun or Polar Eskimo, is a recent arrival and a dialect of Inuktitut.