The primary performance challenge is likely the crossing of hands. Register changes related to the form are also observed in this work. For example, after a sustained dense texture in the high register, the left hand descends by three octaves in measure 12, which clarifies the formal division and simultaneously bridges the registral gap between the preceding and succeeding phrases, making the transition smooth. Placing an acoustic climax through octave progressions in both hands towards the end of each of the first and second halves is a technique also observed in K. 54. In the latter half, measures that heighten the contrast compared to the first half are observed, such as alternations between single melodies and parallel thirds, and interruptions of the eighth-note filling rhythm in measures 47-49.