Gy�rgy Ligeti's "Requiem" for soprano, mezzo-soprano, two mixed choirs and orchestra is one of his most impressive compositions - especially, when directed by Michael Gielen - and at the same time "the" requiem of the 20th century: Sound which is chromatically layered moves gradually from the lower registers to the higher, thus changing from mourning sounds into the promise of the eternal light. In the Kyrie the polyphonic net which was previously static begins to move gently. It was a part of this composition that Stanley Kubrick used to accompany the discovery of the monolith in "2001: A Space Odyssey". Also on this WERGO disc are two other essential works, "Aventures" and "Nouvelles Aventures", highly theatrical and justly celebrated choral works.