Per Bergersen wrote most of his songs in Norwegian, although he also had a couple in English, and much of his material was very dark and sad, probably because of his own depressions and problems, having grown up with his mother until she died when he was fifteen. Some, however, also had a humorous and grotesque edge, whereas still others were social commentaries. Per Bergersen is considered among many people as the greatest (undiscovered) Norwegian songwriter to ever have lived, and in 2010 the Norwegian Broadcasting Corporation broadcast a half-hour-long documentary on Bergersen. Most of his material would also classify as pretty strong comments towards society and social structures like the song "Sachsenhausen" which have a line that directly translated means something like, "They will fire up the ovens for you or me, they don't really care who they burn". Which must be seen in relation to how Per Bergersen probably felt as an outsider in society and being neither able nor welcome to participate on his own terms.