Nikolaus Harnoncourt describes Mozart's Requiem as 'an intensely personal confrontation, frightening and moving in the case of a composer who normally kept his life and experience divorced from his art to an astonishing degree'. This famous recording uses an edition published by Eulenberg in 1972; seeking to come closer to the spirit of the composer himself, it replaces the familiar instrumentation of Franz Xaver Süssmayr, who completed the Requiem after Mozart's death.