Wolfgang Amadeus Mozart was born on January 27, 1756. He was the youngest of seven children, five of whom died in infancy. His elder sister was Maria Anna Mozart, nicknamed “Nannerl”.

When Nannerl was 7, she began keyboard lessons with her father, Leopold, who was a composer and musician, while her three-year-old brother looked on. Though she was very talented, it was soon apparent that Wolfgang was even more so. Wolfgang quickly learned how to play and by the age of five was making up his own pieces, which his father wrote down for him. When he was eight years old, Mozart wrote his first symphony, most of which was probably transcribed by his father.

The Mozarts spent several years traveling around Europe. The child prodigies, Wolfgang and Nannerl, performed at multiple royal courts. During this trip, Wolfgang met a number of musicians and acquainted himself with the works of other composers. A particularly important influence was Johann Christian Bach, whom he visited in London in 1764 and 1765.

After returning with his father from Italy in March of 1773, Mozart acquired a position as a court musician by the ruler of Salzburg, Prince-Archbishop Hieronymus Colloredo. The composer had a great number of friends and admirers in Salzburg, and had opportunities to work in many genres, including symphonies, sonatas, string quartets, masses, serenades, and a few minor operas. Between April and December, 1775, Mozart developed an enthusiasm for violin concertos, producing a series of five (the only ones he ever wrote).

In August 1777, Mozart resigned his position at Salzburg and in September ventured out once more in search of employment, with visits to Augsburg, Mannheim, Paris, and Munich. While Mozart was in Paris, he wrote his A minor piano sonata and the “Paris” Symphony (No. 31). Meanwhile, his father hunted for new opportunities of employment for him in Salzburg. Mozart reluctantly returned to Salzburg in January 1779 and took up his new appointment.

In March, 1781, Mozart was summoned to Vienna, where his new employer, Archbishop Colloredo, was attending the celebrations for the accession of Joseph II to the Austrian throne. Colloredo simply wanted his musical servant to be at hand; but Mozart had a different agenda. He wanted to audition for the Emperor.

Archbishop Colloredo refused to permit Mozart to take on outside jobs. Mozart attempted to resign as the Archbishop’s musical director and was refused. The following month, permission was granted, but in a grossly insulting way: the composer was dismissed literally “with a kick in the arse”, administered by the archbishop’s steward. Mozart moved to Vienna as a freelance performer and composer.

His new career in Vienna began well. He performed often as a pianist, notably in a competition before the Emperor with Muzio Clementi on December 24, 1781, and he soon established himself as the foremost keyboard player in Vienna. He also prospered as a composer, and in 1782 completed The Abduction from the Seraglio, which was a huge success. Performed throughout German-speaking Europe, the opera established Mozart’s reputation as a composer.

Mozart fell in love with Constanza Weber, and they were married August 4, 1782. The couple had six children, of whom only two survived infancy.

In 1784, Mozart met Joseph Haydn in Vienna, and the two composers became friends. When Haydn visited Vienna, they sometimes played together in an impromptu string quartet. Mozart dedicated six quartets to Haydn.

From 1782 to 1785 Mozart mounted concerts with himself as soloist, presenting three or four new piano concertos in each season. The concerts were very popular, and the concertos he premiered at them are still performed regularly.

With substantial returns from his concerts and elsewhere, Mozart and his wife adopted a rather extravagant lifestyle. They moved to an expensive apartment, and Mozart bought himself a fine fortepiano and a billiard table. The Mozarts sent their son Karl Thomas to an expensive boarding school and kept servants. They saved nothing.

Around the end of 1785, Mozart moved away from keyboard writing and began an operatic collaboration with the librettist Lorenzo Da Ponte. 1786 saw the successful premiere of The Marriage of Figaro in Vienna. The opera Don Giovanni premiered in October 1787 to acclaim in Prague. The two are among Mozart’s most important works and are mainstays of the operatic repertoire today.

In December 1787, Mozart finally obtained a steady post under aristocratic patronage. Emperor Joseph II appointed him as his “chamber composer.” It was a part-time appointment, and required Mozart only to compose dances for the annual balls. This modest income became important to Mozart when hard times arrived.

Toward the end of the decade, the Austro-Turkish War caused the general level of prosperity to decline and the aristocracy could no longer support music. Mozart and the other musicians in Vienna found fewer performance opportunities and commissions. The arts struggled.

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

Mozart fell ill while in Prague for the September 6, 1791, premiere of his opera La clemenza di Tito, written in that same year on commission for the Emperor’s coronation festivities. He continued his professional functions for some time and conducted the premiere of The Magic Flute on September 30. His health deteriorated in November, at which point he became bedridden, suffering from swelling, pain, and vomiting.

Mozart was nursed in his final illness by his wife and her youngest sister, and was attended by the family doctor. He was mentally occupied with the task of finishing his Requiem. (Tradition claims it was completed by his student Franz Xaver Süssmayr. Despite the story suggested in the movie Amadeus, no foul play was suspected, and Mozart did not dictate passages to Antonio Salieri.)

Mozart died in his home on December 5, 1791, at age 35. In his brief lifetime he composed more than 600 works, many of which are acknowledged masterpieces of symphonic, chamber, choral and operatic music.