Many interwar Norwegian composers tried to create a new national music by combining elements of authentic folk music with new techniques. Eivind Groven was considered one of the most innovative composers in this quest, integrating the structure of folk dances from his rural upbringing into familiar formal principles. Both symphonies make use of techniques of so-called ‘progressive transformation’, which led fellow composer Arne Nordheim to declare: ‘While others made instrumentations of folk tunes, Groven created sounds, for example in his [two] symphonies which, in my opinion, are quite unique.’