Although the first movement is bright and lively, it should be played leggiero so as not to overwhelm the listener. Crucially, the treatment of ornaments is vital. The quality of this movement hinges on how the ornaments are executed.

As a recommended reference recording, please listen to Hitomi Maeyama's performance. You will discern her astonishing handling of ornaments. Furthermore, in Maeyama's performance, for instance, when playing the descending passage in the right hand at measure 10, she does not necessarily play it legato; instead, she articulates each note staccato to achieve lightness.

Moreover, when the key changes, she alters the 'color,' resulting in a performance where the contrast with C major is clearly discernible.

In the development section, after a series of key changes including harmonic sequences, the music ultimately modulates to C minor. Since the same passages are frequently repeated, endeavor to vary the dynamics each time to avoid monotony.