Kristnihald undir Jökli is an album by Quarashi. It was released on September 22, 2001 in Iceland (see 2001 in music). The album contains mostly instrumental music written and produced by Quarashi founding members, Sölvi Blöndal and Hössi Olafsson as the soundtrack for the Halldór Laxness play, Kristnihald undir Jökli, itself based on his 1968 novel of the same title translated into English as Christianity at Glacier and republished since as Under the Glacier. The play was directed by Bergur Þór Ingólfsson, and ran in the Borgarleikhús in the winter of 2001. Kristnihald undir Jökli fused traditional Icelandic classical music with techno, electronic music, and rock. The album also delved into genres fans hadn't heard from Quarashi yet, such as jazz.

Even though neither Omar Swarez, nor Steini a.k.a. Stoney did any work on the album, Kristnihald undir Jökli was still released under the Quarashi name, and is considered Quarashi's third full-length album. Only 500 copies of Kristnihald undir Jökli were made, but most of them were sold, and it is rare to find the CD today.

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