Symphony no. 6 in F major K 43, composed in 1767, is the first symphony written by Wolfgang Amadeus Mozart in four movements, introducing the Minuet and Trio , a feature later present in many of his subsequent symphonies. The Concerto in A minor to His Excellency Lunardo Venier is by the very virtuoso violinist Giuseppe Tartini , while the Adagio and fugue for orchestra in D major, initially attributed to Wolfgang Amadeus Mozart, is actually by Johann Michael Haydn, brother of the better-known Franz Joseph , substitute teacher for Leopold Mozart and Antonio Salieri in Salzburg and close friend of Wolfgang Amadeus Mozart, who thought highly of his work. The program ends with the concert for violin and orchestra n. 7 in D major K 271a, of dubious authorship, probably reworked in the solo violin part, and Symphony no. 24 in B flat major K 182, one of the so-called Salzburg Symphonies .