The Requiem by the Hungarian composer György Ligeti is a large-scale choral and orchestral composition, composed between 1963 and 1965.
The work lasts for just under half an hour, and is in four movements: "Introitus", a gradual unbroken plane of sound; "Kyrie", a complex polyphonic movement reaching a fortissimo climax; "Dies Irae", which uses vocal and orchestral extremes in theatrical gestures; and the closing "Lacrimosa", for soloists and orchestra only, which returns to the subdued atmosphere of the opening.