This should be interesting: the newest space for the arts in Berlin, the Radialsystem, hosts this year’s Tenso Days Festival. The festival features three concerts with contemporary music for chamber choirs. Works include well-known pieces by Rihm (Astralis), Lachenmann (Consolation II), Scelsi (Tre canti sacri), and Ligeti (Lux aeterna) as well as premieres by Franck Krawczyk, Gundega Smite, Peteris Vasks, Brian Cherney, and Vito Zuraj. The works will be performed by the Accentus Choer de Chambre, the Latvian Radio choir, the RIAS Kammerchor, and the Scharoun Ensemble Berlin. Additionally there will be talks and a panel discussion.