This work serves as a primary source document, presenting a facsimile of Wolfgang Amadeus Mozart's original manuscript for the 'Lacrimosa' movement of his Requiem. The publication provides a high-quality reproduction of the composer's handwriting and notation from 1791, offering scholars and enthusiasts a direct look at the final creative output of the composer. By isolating these specific bars, the text invites a technical examination of Mozart's compositional process during his final days.

The subject matter points to a specialized archival resource intended for musicologists and collectors of classical music history. The inclusion of a facsimile autograph provides a tangible connection to the composer's final work, emphasizing the technical and historical significance of the manuscript's preservation.