Although it is in 4/4 time, it is acceptable to play with a feeling closer to 2/4 time. While 4/4 time is certainly permissible, a tempo that is too slow may diminish the sense of "con spirito" indicated in the notation. Please select a lively and spirited tempo. The mood is exceptionally optimistic, making this a joyful movement. It should never feel ponderous; aim for an overall light execution. In this regard, be mindful that the presence of octaves can potentially render those sections stiff and heavy.

The opening measures 1-2 present the theme of the sonata's first movement. You may envision an orchestral sound, so for these specific octaves, forte is acceptable.

Particular attention should be paid to the right-hand octaves in measures 15, 18, and so forth, and the right-hand fifths in measures 16, 19, and so forth. For the octaves, truly suppress the volume and play leggiero. For the fifths, ensure no undue force is applied to the first finger, and play the two eighth notes on the first beat with the shortest and lightest staccato possible.

The left-hand octaves in measures 56-58 are marked forte, but mezzo forte or softer is entirely sufficient. Although written as quarter notes, it is not strictly necessary to sustain them for their full duration; semi-staccato would also be acceptable.

The theme reappears in numerous keys. Each time, discern the prevailing mood and endeavor to vary the expression after the theme's presentation.