It is with no small pride that the Chamber Choir on this occasion introduces two new pieces by Petersson to the public, “Den stora gåtan” (the great enigma), a first performance, and “Romanska bågar” (Romanesque arches), to poems by Tomas Tranströmer. Both pieces are performed a cappella and offer great tonal art in a contemporary Nordic tonal idiom. In addition, the programme includes well-known Carl Nielsen songs, and pieces by Nørgård and Takemitsu, one of the greatest Japanese composers of the 20th century.EKKOZONE has specialized in new music. The ensemble is led by Mathias Reumert, and under various names it has travelled Europe and the States with avant-garde music. Among other feats, the ensemble gave the first performance in Denmark of Steve Reich’s masterpiece “Music for 18 Musicians”.Programme:Per Gunnar Petersson (1954– ): Den stora gåtan, 2012. First performanceCarl Nielsen (1865–1931): Seven songs arranged by John HøybyePer Gunnar Petersson: Aftonland. Four poems for mixed voices, mezzo-soprano and French horn.Toru Takemitsu (1930–1996): Rain Tree. For vibraphone and two marimbas.Per Gunnar Petersson: Romanska bågar.Per Nørgård (1932– ): Drømmesange for choir and percussion.