Despite their different musical languages, all works by the Polish composers Karol Szymanowski and Krzysztof Penderecki presented on this album have in common the inherent character of a lament: Szymanowski's Stabat mater, which was completed in 1926 and is based on a Polish translation of the Latin medieval poem, is considered as one of the most important compositions of the 20th century. Penderecki's three-part oratorio Dies Irae was commissioned for a commemoration day in remembrance of the murder victims at the former concentration camp in Auschwitz, and hence carries the epithet "Auschwitz Oratorium". The album closes with a Threnos for 52 string instruments dedicated to the Victims of Hiroshima. The final haunting bars of this composition present a tutti cluster, starting in a triple forte and fading out to quadruple piano.