The Symphony No. 40 in F major, Hoboken I/40, is a symphony by
Joseph Haydn. Despite its number, Haydn had composed this symphony by 1763, long before the other symphonies numbered in the 30s and 40s in Hoboken's catalog. Chronologically, the symphony belongs with no. 13 and has stylistic similarities with Haydn's earliest symphonic output.
The work is in four movements and is scored for two oboes, bassoon, two horns, and strings:
