Nationalteatern is a Swedish progg rock group from the 1970s that featured leftist political lyrics. It was originally a traveling theater ensemble with many members, most notably Ulf Dageby, Anders Melander, Totta Näslund, Nikke Ström, Hans Mosesson and Pale Olofsson. History. Initially formed as a free theater group in Lund in 1968, Nationalteatern moved to Gothenburg and started to put heavy emphasis on the musical part of the plays. The leader of the group in the early days was Anders Melander, who also played most of the instruments on the group's debut album, Ta det som ett löfte...
https://en.wikipedia.org/wiki/Nationalteatern