Incorporating modern instrumentation and imaginative improvisation, Groupa has taken a contemporary-minded approach to the folk music of Sweden. Led by drone fiddle, viola and accordion player Mats Eden, the group has been at the forefront of the Swedish folk revival for more than two decades. While Rock'N'Reel magazine claims that Groupa "will challenge people's preconceptions of Swedish music", Roots World suggest that the band "achieves near perfection as they go further afield without leaving the ancient muse behind".