This edition of the well-known choral masterwork from Mozart's "Requiem," now available for mixed, TTBB, and SSAA voices, has become a standard for today's choirs. Patrick Liebergen has re-scored the keyboard accompaniment and transposed the work down a major second to make it more accessible for accompanists and singers. Generally considered Mozart's last musical sketch, it was featured in the closing scenes of the movie "Amadeus."