Wolfgang Amadeus Mozart left his Requiem in D minor, K. 626 unfinished when he died on December 5, 1791. Within that incomplete masterpiece, the Lacrimosa stands out as the emotional apex. It is the movement where Mozart's pen stopped after writing just eight bars, giving birth to a century of myths about poison, deathbed visions, and ghostwriters.
The piece begins with a weeping string figure that mirrors falling tears, building into a searing choral plea for mercy. Understanding the Lacrimosa requires separating the grim legends from the documented reality of Mozart's final months in Vienna.
The Anonymous Commission and the Context of 1791
In the summer of 1791, a mysterious messenger dressed entirely in gray delivered an anonymous commission to Mozart's home. The courier offered a generous upfront fee on the condition that Mozart would not attempt to discover the identity of his employer.
The mysterious patron was later identified as Count Franz von Walsegg, an amateur nobleman who wanted a requiem mass to commemorate the recent death of his young wife. Walsegg had a habit of commissioning works from prominent composers and secretly copying them out in his own hand to pass them off as his own compositions at private concerts.
At the time, Mozart was drowning in work. He was simultaneously racing to finish The Magic Flute and La Clemenza di Tito, alongside mounting debts and failing health. Desperate for cash, he accepted the commission without knowing it would become his final statement.
The Composition of the Lacrimosa
The Lacrimosa dies illa ("Day of weeping that bitter day") forms part of the Sequence section of the Catholic Requiem Mass. Mozart started drafting the movement in late November 1791, just days before his death.
Musically, the movement is a masterclass in tension and release.
- The rhythm: The violins and violas play a recurring, syncopated two-note figure in 12/8 time that mimics a heavy, sobbing sigh.
- The vocal entry: The chorus enters softly with Lacrimosa, building incrementally in volume and pitch from a whisper to a shattering fortissimo on the word judicandus (to be judged).
- The abrupt stop: Mozart managed to write out the first eight vocal and orchestral bars of the movement before his hand failed him. The manuscript breaks off mid-word on the Amen.
The Myth Versus Historical Reality
Because Mozart died at the young age of 35 while working on a mass for the dead, rumors exploded almost immediately.
The most persistent myth claims that Mozart became convinced he was writing his own funeral mass, poisoned slowly by his rival Antonio Salieri. Popular culture, amplified by plays and films like Amadeus, cemented the image of a feverish genius dictating the Lacrimosa from his deathbed.
Historical records tell a more grounded story. While Mozart was certainly ill and weak, letters and contemporary accounts show he was lucid and actively collaborating with visitors during his final days. He was surrounded by family, pupils, and unfinished scores, trying desperately to secure financial stability for his wife, Constanze, through the delivery of the completed manuscript.
Who Actually Finished the Requiem?
Constanze Mozart needed the final payment for the Requiem to survive financially, but the contract required a finished piece. She first approached Mozart's pupil Joseph Eybler, who managed to sketch instrumental parts into some sections before abandoning the task out of intimidation.
The job ultimately went to Franz Xaver Süssmayr, a young composer and assistant who had worked closely with Mozart during his final months.
- Süssmayr used Mozart's initial eight-bar sketch for the Lacrimosa.
- He composed the subsequent lines of the movement himself, matching Mozart's stylistic framework.
- He completed the remaining unfinished movements of the Requiem, including the Sanctus and Agnus Dei, based on verbal instructions and preliminary drafts left behind by Mozart.
Musicologists have debated Süssmayr's orchestration choices for centuries, pointing out that his scoring is heavier and less sophisticated than Mozart's mature writing. Yet, without his intervention, the Requiem would remain an incomplete fragment.
The Cultural Legacy and Influence
The Lacrimosa has transcended classical concert halls to become a universal symbol of grief. Its integration into films, television, and memorial services has introduced millions to choral music.
Part of its enduring power is its structural accessibility. You don't need a degree in music theory to feel the weight of the descending string patterns and the raw terror of the choral plea for mercy. It represents a rare intersection where human tragedy, high art, and historical mystery collide.
Frequently Asked Questions
Did Mozart write the entire Lacrimosa himself?
No. Mozart wrote only the first eight bars of the movement. The rest of the Lacrimosa, including the transition into the concluding Amen fugue, was composed by his student Franz Xaver Süssmayr based on Mozart's structural outlines.
What disease caused Mozart's death?
The exact cause of Mozart's death remains a subject of medical debate. Contemporary diagnoses ranged from rheumatic fever to kidney failure, while modern retrospective analyses suggest streptococcal infection or acute rheumatic fever. There is no historical evidence supporting theories of foul play or poisoning.
Why is the Requiem written in D minor?
In classical and baroque composition, the key of D minor was frequently associated with solemnity, tragedy, and divine judgment. Mozart used this key for other dark, dramatic works, most notably the supernatural climax of his opera Don Giovanni.
Where is the original Mozart Requiem manuscript stored?
The surviving autograph manuscript of the Requiem, containing both Mozart's original ink and the additions by Süssmayr and Eybler, is housed in the Austrian National Library in Vienna, where it is preserved as a national cultural treasure.
