 25 in G major, Perger 16, Sherman 25, MH 334 is a classical symphony that was composed by Michael Haydn in 1783, with a completion date of May 23.It is scored for flute (in the second movement), 2 oboes, 2 bassoons, 2 horns and strings.The opus was for a long time believed to be Wolfgang Amadeus Mozart's Symphony No.