Throughout, sixteenth notes continuously flow in an undulating manner, generating intense tension. The impression conveyed is not of a quiet night, but rather of a stormy night or being tormented by a nightmare. In the opening section of the ternary form, diminished seventh chords are prevalent. While the middle section shifts to a major key and appears calm at first glance, minor second intervals, which still generate tension, are employed as non-harmonic tones in the accompaniment. It is the longest piece in the collection and is likely positioned as the fifth piece, serving as the core of the entire work.