[1] During the meetings the members discussed music aesthetics and compositional process and technique, in particular Paul Hindemith's Unterweisung im Tonsatz.
The core of the group consisted of Karl-Birger Blomdahl, Sven-Erik Bäck, Sven-Eric Johanson, Ingvar Lidholm, Claude Loyola Allgén[2] and Hans Leygraf.
Other people, for example Claude Génetay, Göte Carlid, Hilding Rosenberg and Ingmar Bengtsson also participated at times.
[4] Most of the members rejected the late-romantic and neo-classical ideals that were present in Sweden at the time.
Måndagsgruppen participated in cultural and musical debate and played an important role in the stylistic changes towards modernism that came during 1950–1960.