The rules of music change are:

1. From "soft and soothing" to "gradually increasing"

2. From "bright" to "strong sound" "Sudden sound" - "High and exciting"

Excerpt from the original text:

A gust of wind blew out the candle. The moonlight shines through the window, and everything in the hut seems to be covered with silver gauze, making it look particularly quiet. Beethoven looked at the brother and sister standing beside him, and pressed the keys in the quiet moonlight.

The shoemaker listened quietly. He seemed to be facing the sea, and the moon was rising from where the water and the sky met. The sparkling sea surface was instantly filled with silver light. The moon rises higher and higher, passing through wisps of thin clouds like gauze.

Suddenly, strong winds blew on the sea and huge waves rolled up. The waves illuminated by the moon were pouring towards the shore one after another. The shoemaker looked at his sister. The moonlight was shining on her peaceful face and her wide-open eyes. She seemed to see it too, and saw a scene she had never seen before, the rough sea illuminated by the moonlight.

The brother and sister were intoxicated by the beautiful sound of the piano. By the time they woke up, Beethoven had already left the hut. He rushed back to the inn and spent the whole night recording the song he had just played - "Moonlight Song".

Extended information:

Moonlight is divided into three movements:

The first movement, continuous adagio, c sharp Minor key, 2/2 time, three-part style. It is a fantasy, improvisatory and soft ballad in the form of a sonata. Contrary to the traditional form of piano sonata, Beethoven used an adagio in the first movement of this piece, and the slow melody reveals a touch of sadness.

The second movement, Allegro Minor, is in the key of D flat major, in 3/4 time, in a trilogy style. In this movement, Beethoven once again "went the other way" and changed the second movement, which has always been a slow movement in traditional piano sonatas, to a very brisk rhythm, a short, concise and beautiful melody. A sharp contrast to the first movement. This movement plays a very obvious role in "connecting the past with the future", and the first movement and the third movement are perfectly connected here.

The third movement, exciting Presto, in C sharp minor, 4/4 time, sonata form. This movement has a delicate structure, wonderful piano effects and rich musical content. The stormy melody contains various complex piano techniques, expressing an angry mood and high fighting spirit. Until the end of the whole song, it is still a "final impact" situation.