quality:correction, linguistic:paraphrasing, structural:scholar_edition
1791

Mozart's last year was, until his final illness struck, a time of high productivity—and by some accounts, one of personal recovery. He composed a great deal, including some of his most admired works: the opera The Magic Flute; the final piano concerto (K. 595 in B ♭); the Clarinet Concerto K. 622; the last in his series of string quintets (K. 614 in E ♭); the motet Ave verum corpus K. 618; and the unfinished Requiem K. 626.

Mozart's financial situation, a source of anxiety in 1790, finally began to improve. Although the evidence is inconclusive, it appears that wealthy patrons in Hungary and Amsterdam pledged annuities to Mozart in return for the occasional composition. He is thought to have benefited from the sale of dance music written in his role as Imperial chamber composer. Mozart no longer borrowed large sums from Puchberg and began to pay off his debts.

He experienced great satisfaction in the public success of some of his works, notably The Magic Flute (which was performed several times in the short period between its premiere and Mozart's death) and the Little Masonic Cantata K. 623, premiered on 17 November 1791.