In fact, I should not regret, as confirmed my concert of this formation at Pentecost 2012 in Leipzig my decision. (The fact that the sound recordings offered there for sale were sold out at once, let me guess that you have not only fascinates me.)
Wardruna do it with this wonderful work to inspire me as a lover of the genre "folk" and "Ambient", particularly in my predilection for music from Scandinavia.
The work "Gap Var Ginnunga" I recommend to listen quietly, late at night or even better at night, in dim lighting, and absolutely straight. Because the individual tracks flow seamlessly into one another and blend together in a similar way and can so the recipient go on an adventurous acoustic expedition.
