Symphony No.37 in G major, KV 444

The complete symphony was for a long time believed to be a work by Mozart, but is now known to have actually been mostly written by Michael Haydn, being his Symphony No. 25 in G major, Perger 16, Sherman 25, MH 334. The true authorship was discovered by Lothar Perger in 1907. Modern commentators find it "difficult to comprehend how the editors of the Breitkopf edition of Mozart could have considered the three movements of the G major Symphony as the immediate successor of the 'Linz' Symphony; the infinitely simpler and more archaic art of the Salzburg master offers such a contrast that one might well suppose this symphony to date much earlier than 1783" if Mozart had been the one to write it.