Well, mostly you refer to prog as well played music, long songs, big arrangements, big productions and maybe a somewhat pretentious touch. Pink Floyd, Jethro Tull, Genesis - that´s what most people consider as prog. But the swedish progg is completely different. In this music it´s not talent that are important. The general idea was that anyone could make their own music, just as long as they were political enough. The whole progg scene was about politics. If you could play your instrument or not wasn´t important. So many of this bands is plain shit. But Hoola Bandola Band, Kebnekajse etc is very good. The progg was very big in Sweden in the seventies and many of this bands have a cult status today. Like Nationalteatern.
I´ll give you a deeper insight in the progg later, with links, pictures - and maybe even sounds!