The amazing Árstíðir singing the 13th century Icelandic hymn “Heyr himna smiður” at the train station in Wuppertal, Germany.

“Heyr, himna smiður” was written by Kolbeinn Tumason in 1208. The music was composed in the 1970s by Þorkell Sigurbjörnsson (1938-2013), one of Iceland’s foremost contemporary composers.