Listeners encountering this piece for the first time would likely not anticipate the bustling, joyful world that unfolds, given its subdued opening in the first four measures. This first movement also progresses at a Moderato tempo; therefore, it might be advisable to count the eighth note as the fundamental beat unit (counting eight per measure instead of four will facilitate accurate rhythmic precision). Indeed, precise beat counting is of paramount importance throughout this first movement. It is imperative to ensure that the tempo does not decelerate upon the appearance of 32nd notes, even if the opening section is rapid. To achieve this, one should play the measures densely populated with smaller note values without strain, establishing that tempo as the foundational pace from the outset. The entire piece is replete with unexpected developments, characteristic of Haydn's distinctive sense of humor. Therefore, maintain a singular, unwavering tempo throughout, performing with utmost enjoyment and vivacity.