Chopin's Nocturne in C minor is a passionate and unrestrained work. The first part begins with a staccato melody, the tone is rich in expressive language, like a sad monologue. The solemn and evenly paced accompaniment creates a tragic atmosphere. The solemn and slow melody in the middle part is like a religious hymn. It is gentle and calm at first, like soothing and blessing to the soul. Later, it gradually became resolute and heroic, majestic and powerful, like a magnificent march, in which the melody of the carol alternates with the fast sound groups of chromatic parallel octaves from time to time, as if it is moving forward driven by a magnificent force. This force gradually grew, and the chromatic sound group expanded vigorously, reaching a climax, and finally turned into a loud, strong, and exciting horn sound. Finally, the music returns to the first part, but it has changed its original image and doubled in speed. Accompanying the original melody are rich scattered chords and rapid rhythm patterns; the sad monologue becomes an anxious, restless, and restless monologue. Exciting language. In this nocturne, the development of musical images is dynamic and dramatic.