The Konzert für Chor was recorded in the Herkulessaal der Residenz, München, 18 - 21 February 2012, the other Schnittke tracks 11 - 13 June 2011. Notes in German and English, track titles in Russian, German and English
ReviewPeter Dijkstra here conducts the Bavarian Radio Choir in acapella performances of Schnittke and Pärt, two deeply religious composers. The booklet explains that both were born in states that did not tolerate religious worship, but Schnittke came from Jewish and Russian Orthodox families, and both Schnittke and Pärt eventually converted to Russian Orthodoxy.
The choice of the Pärt at first seems somewhat out of place, initially being rather jolly and secular until it settles into a more profound style. Schnittke's Stimmen Der Natur is vocalese for the women only.
The entire Concerto For Choir can be found on YouTube: