Symphony No.81 in G major, Hob. I:81

In the first and third movements, Haydn explores "ambiguities of tonality ... which eventually reach their peak of subtlety" of the first movement of Symphony No. 94. The first movement begins "with an unusual and exciting pedal point ... [and] uses a subsidiary subject that appears like a cordial greeting to the newly won friend [Mozart]." The pedals and dissonances point to Mozart's K. 465.