With about 65 concerts a year , regular awards and guest appearances at all the major festivals of the three -time Grammy Award winner Radio Choir is one of the most outstanding choirs in the world. His rousing speech to be rich and nuanced sound make the professional choir in demand as a partner to all major conductors and orchestras. In Berlin is the choir permanent partner of the Berlin Philharmonic , the Deutsches Symphonie- Orchester Berlin and the Berlin Radio Symphony Orchestra and its chief conductor . In addition, the Berlin Radio Choir concert opens with interdisciplinary projects successfully experience new ways of choral music. With its sing-along concerts - the sing-along concert , the leader of Chor Berlin Stock Exchange or the songs - it moves people of all ages and backgrounds to actively immerse themselves in the world of choral music. Founded in 1925 , the ensemble is led since 2001 by Simon Halsey . The Berlin Radio Choir is an ensemble of radio orchestras and choirs GmbH Berlin .