Bent Berger is a specialist in West Africa drumming. 1986 he formed Chapter Seven, a group with a singular setting influenced by West African music: Two drummers, two bass players, three saxophonists and, occasionally, trombone. Anders Kjellberg plays drums together with Bengt Berger, Anders Jormin and Sergei Muchin play double bass, Tomas Gustafson, Roland Keijser and Lennar Åberg play soprano and tenor saxophones and Nils Landgren participates on trombone.