Symphony No. 40 in G minor, K. 550 was written by Wolfgang Amadeus Mozart in 1788. It is sometimes referred to as the "Great G minor symphony", to distinguish it from the "Little G minor symphony", No. 25. The two are the only extant minor key among Mozart's symphonies.
The Symphony No. 31 in D major, K. 297/300a, better known as the Paris Symphony, is one of the most famous symphonies by Wolfgang Amadeus Mozart. It may have been first of his symphonies to be published when Jean-Georges Sieber released their edition in 1779.
The Symphony No. 4 in D major, K. 19, by Wolfgang Amadeus Mozart was composed in London during the Mozart family's Grand Tour of Europe in 1765, when Mozart was nine years old.
Symphony No. 14 in A major, K. 114, is a symphony composed by Wolfgang Amadeus Mozart on December 30, 1771, when Mozart was fifteen years old, and a fortnight after the death of the Archbishop Sigismund von Schrattenbach. The piece was written in Salzburg between the composer's second and third trips to Italy. Mozart was also influenced by J. C. Bach's "Italianate" style of composition".
The Symphony No. 8 in D major,, by Wolfgang Amadeus Mozart is dated 13 December 1768. Mozart wrote the symphony in Vienna, when he was twelve years old, at a time when he and his family were already due to have returned home to Salzburg. In a letter to his friend in Salzburg, Johann Lorenz Hagenauer, Leopold Mozart says of the delay that "we could not bring our affairs to a conclusion earlier, even though I endeavored strenuously to do so." The autograph of the Symphony No. 8 is today preserved in the Berlin State Library.
The Symphony No. 26 in E♭ major, K. 184/161a, was written by Wolfgang Amadeus Mozart and completed on March 30, 1773, one month after he returned from his third Italian tour.
Symphony No. 6 in F major, K. 43, was composed by Wolfgang Amadeus Mozart in 1767. According to Alfred Einstein in his 1937 revision of the Köchel catalogue, the symphony was probably begun in Vienna and completed in Olomouc, a Moravian city to which the Mozart family fled to escape a Viennese smallpox epidemic; see Mozart and smallpox.
Symphony No. 7 in D major, K. 45, by Wolfgang Amadeus Mozart, was completed in Vienna in January 1768 after the family's return from a visit to Olomouc and Brno in Moravia. The symphony is in four movements. Its first performance was probably at a private concert. The symphony was reworked to become the overture to Mozart's opera, La finta semplice, K. 51, composed and performed later that year, and the overture itself was subsequently adapted further to create a new symphony, known in the Köchel 1964 (K6) catalogue as K. 46a. The autograph of the score is preserved in the Berlin State Library.
Symphony No. 12 in G major, K. 110/75b, by Wolfgang Amadeus Mozart, was composed in Salzburg in the summer of 1771. The symphony was apparently prepared in anticipation of Mozart's second Italian journey, which was to take place between August and December 1771. The symphony is in four movements, the opening allegro being the longest movement that Mozart had written to that date. It is the first of a group of works "painted on a larger canvas and achieving a greater individuality than his earlier exuberant pieces".
Symphony No. 13 in F major, K. 112, by Wolfgang Amadeus Mozart, was written in Milan during his second journey to Italy in the autumn of 1771. The symphony is in four movements, the second of which is scored for strings alone. The third movement minuet may have been written earlier, and then incorporated into the symphony—the autograph manuscript shows the minuet copied in Leopold's hand. Nicholas Kenyon describes Symphony No. 13 as the last in "conventional mode"—thereafter "we are in the beginnings of a different world."
The Symphony No. 15 in G major, K. 124 by Wolfgang Amadeus Mozart was written in Salzburg during the first weeks of 1772. A note on the autograph manuscript indicates that it might have been written for a religious occasion, possibly in honour of the new Archbishop of Salzburg. The work is in four movements, the first of which has been described as innovative and "daring", in view of its variations of tempo. The last movement is characterised by good humour and frivolity, with "enough ending jokes to bring the house down".
Symphony No. 11 in D major, K. 84/73q, was at one time considered unquestionably to be the work of Wolfgang Amadeus Mozart. Its status has, however, been challenged, and remains uncertain. It is believed to date from 1770, and may have been written in Milan or Bologna, if it is a genuine Mozart work. An early manuscript from Vienna attributes the work to Wolfgang, but nineteenth-century copies of the score attribute it respectively to Leopold Mozart and to Carl Dittersdorf. Neal Zaslaw writes: "A comparison of the results of two stylistic analyses of the work's first movement with analyses of unquestionably genuine first movements of the period by the three composers suggests that Wolfgang is the most likely of the three to have been the composer of K73q".
The Symphony in G major "Old Lambach", K. Anh. 221/45a, was probably written by Wolfgang Amadeus Mozart during 1766 in The Hague and revised in 1767. Both versions – the original and the revision – have survived.
The Symphony "No. 43" in F major, K. 76/42a, was probably written by Wolfgang Amadeus Mozart.
The Symphony in D major "No. 45", K. 95/73n, was probably written by Wolfgang Amadeus Mozart in 1770 in Rome.
The Symphony in D major "No. 47", K. 97/73m, was probably written by Wolfgang Amadeus Mozart in 1770 in Rome.
The Symphony in F major "No. 56", K. 98/Anh.C 11.04, was once thought to have been written by Wolfgang Amadeus Mozart, but today is regarded as spurious. As of 2009, it is the only one of Mozart's symphonies published in the Alte Mozart-Ausgabe that has never been recorded. It is not included in the Neue Mozart-Ausgabe.
The Symphony in D major "No. 44", K. 81/73l, may have been written by Wolfgang Amadeus Mozart in 1770 in Rome, although it has sometimes also been attributed to his father Leopold Mozart. It is now also catalogued as Eisen D 14 in Cliff Eisen's catalogue of Leopold Mozart's symphonies.
The Symphony in B♭ major "No. 54", K. Anh. 216/Anh.C 11.03/74g, may have been written by Wolfgang Amadeus Mozart in 1771, in Salzburg.
The Symphony in A minor "Odense", K. Anh. 220/16a/Anh.C 11.18, was formerly attributed to Wolfgang Amadeus Mozart. If the Odense Symphony had truly been Mozart's, it would be among only three of Mozart's symphonies to be written in a minor key. It is now considered certain that the symphony is not by Mozart.
