The church was inaugurated in 1137, and then the Magnus hymn may have been sung for the first time - although the oldest known manuscript dates from 1280. The Magnus hymn is radically different from European church music at that time. It is written in two parts which follow each other in parallel thirds. The Magnus hymn in modern transcription. The English writer Giraldus Cambrensis who lived at that time, also tells us that two part singing was common in the areas that had been settlede or influenced by the Vikings, but unknown elsewhere, so that he regarded this custom as a legacy of the Vikings.
Years go by, and the sources are silent.
The Viking age and its tradition disappear in the mists of history, and language, music, thinking and traditions change all over Scandinavia. But in Iceland the language of the Vikings live on, with only minor changes. And in Iceland we find our next clue. Or rather, in Paris. The year is 1780.