When
Wolfgang Amadeus Mozart died, his widow Constanze was fearful of losing the commission for the
Requiem; only fifty ducats had originally been advanced. She first turned the score over to Joseph Eybler, who had attended
Mozart assiduously during his illness and for whom
Mozart had written a recommendation for the post of Kappellmeister. Eybler began by completing the orchestration of the "Dies irae", quite respectably, but stopped at the "Confutatis"; at this point, he would have needed to begin 'composing' where
Mozart left off.