Wikipedia
Hrafntinna
"Hrafntinna" ( Icelandic for "Obsidian", ) is a song written and recorded by Icelandic post-rock band Sigur Rós for their seventh studio album Kveikur. It appears as the second track on the album. The song appeared on the Icelandic Tónlist chart in the week of the release of Kveikur, thanks to strong digital sales of the album, which debuted at #1 on the Tonlist album charts. The song peaked at #29.