Icelandic legendary band Sigur Rós is back with a new album called Odin’s Raven Magic. According to the press release, It is an orchestral collaboration between Sigur Rós, Hilmar Örn Hilmarsson, Steindór Andersen and Maria Huld Markan Sigfúsdóttir which premiered 18 years ago at the Barbican Centre in London and is now finally almost two decades later being released. The performance honours the poem, dramatic and beautiful, classical and contemporary. A stone marimba was built especially for the performance by Páll Guðmundsson.

Odin’s Raven Magic – the poem – had been relegated from mainstream ancient literature ever since 1867, when Norwegian scholar Sophus Bugge claimed it was a 17th century fabrication. This theory has since been toppled with literary and linguistic arguments and new research has concluded that Odin’s Raven Magic was indeed authentic and has finally been reintroduced to the Edda.

Check the full streaming below.