This piece is like a keyboard game, where the right and left hands play alternately, allowing the performer to enjoy its kinetic nature. From measures 1 to 8, the piece consists of two-measure phrases, at the end of which the left hand crosses over the right hand to play a high G. While successfully executing this jump and landing precisely on G might feel like a fun game, it serves as an excellent teaching material for learning pendulum motion using the entire arm. From measure 9 onwards, a melody extending to a considerably high register is constructed by alternating between the left and right hands, which will likely make it difficult to play while reading the score. Try to memorize the melody and the series of large eight-measure melodies created by both arms, and experience the joy of performing them boldly.