Michael Haydn's Symphony No.
14 in B-flat major, Perger 52, Sherman 14, MH 133, was written in Salzburg between 1768 and 1770[1] For some reason Lothar Perger believed it to be the last symphony Michael Haydn ever wrote.
This work was at one time attributed to Joseph Haydn, the third work in B-flat major so attributed.
The score is unusual for a number of reasons: the second movement contains an extended concerto-like solo for bassoon, and is subtitled "Concertino per il Fagotto”.
In addition to the normal complement of strings, two oboes and two bassoons, it calls for four 4 horns.