Symphony in F major, K.75

The Symphony in F major "No. 42", K. 75, was written by Wolfgang Amadeus Mozart probably around March to August 1771 in Salzburg.

The symphony is scored for two oboes, two horns in F (only in first and last movement) and strings. In Mozart's time, it was usual to include also bassoons and harpsichord if they were available to reinforce the bass line and act as the continuo. The duration is approximately 13 minutes.

The symphony consists of the following movements:
Allegro, 34
Menuetto, 34
Andantino, 24 in B-flat major
Allegro, 38
Unusually, the minuet and trio is the second rather than the usual third movement.

Like other works from this time period, such as the K. 97 symphony, the autograph, which was in the possession of Breitkopf & Härtel, was destroyed during World War II. Mozart's authorship therefore remains uncertain. Most professionals consider the work authentic.