Who does the music of the Brothers Grimm in Bremen City refer to?

A donkey, a dog, a cat, and a rooster.

The article is as follows:

Once upon a time, a farmer raised a donkey. This donkey has been working hard for him for many years, but the ruthless years and years of hard work have made him old. His work is getting worse day by day, and it is becoming more and more difficult for him to do his previous job. Therefore, his master did not want to keep him anymore and was ready to kill him. However, the donkey saw his master's intention, so he ran out quietly and marched all the way to the city.

He thought: "When I get there, I might be able to be a musician."

After walking for a while, he found a dog lying on the side of the road, as if he was extremely tired. Same, constantly panting. The donkey came up and asked: "Friend, why are you panting like this?" The dog replied: "Hey! Because I am old and have no strength, I can no longer go hunting with my master, so the master He was going to beat me to death. So I ran out, but what am I going to do for a living now?" The donkey said, "Well, I'm going to go to the city to be a musician. If you are willing to go with me, we will. Like-minded, are you willing?" The dog immediately said that he was willing to go together, so they became fellow travelers.

Not far away, they saw a cat squatting in the middle of the road with a sad face. The donkey stepped forward and said, "Madam, please tell us, what's wrong with you? Why are you looking so listless." "Me!" the cat sighed, "whose life is in danger, he Can I ever be in better spirits? Just because I am old and want to rest by the fire instead of catching mice in the house, my mistress seizes me and wants to drown me, even though I am lucky. I escaped from her, but I don’t know how to make a living from now on."

"Okay! Just go to the city with us. You will be a good singer at night. The musician will bring you good luck."

The cat listened to this advice and happily joined them.

Not long after walking, they passed a farm and saw a rooster perched on a door and crowing at the top of his lungs. "Wonderful!" said the donkey, "your voice is quite good. Can you tell me what it is about?" "Oh!" the rooster replied, "I am saying that today is a good weather and it happens to be laundry day. My hostess and the cook not only did not thank me for my hard work, they also planned to kill me tomorrow and make chicken soup for the Sunday guests. "I hope this won't happen," said the donkey. Come to town with us! It's better than staying here and waiting to be beheaded! Besides, if we take turns singing, we can organize a concert. Let's join the team!" Rooster said, "Okay! I will do my best." The four of them happily embarked on the road to the city.

However, the city cannot be reached in one day, so when it gets dark, they have no choice but to go into a forest to rest. The donkey and the dog slept under a big tree, the cat climbed up the tree and slept on the branch, and the rooster thought that the higher the place was, the safer it would be, so he flew to the top of the tree. He also had a habit of sitting on top of the tree. Before going to bed, check everything around you to see if there is anything wrong. He straightened his neck and took a look, and found that there was light coming from the distance, and immediately shouted to his companions: "There must be a house not far away, because I saw the light." The donkey said: "If there is really a house, then We'd better sleep somewhere else. The place to sleep is too bad now." The dog continued, "And maybe we can find some bones or some meat there!" So they looked at the rooster together. direction. As they came closer, the lights grew brighter. At last they came to a house where robbers lived.

The donkey was the biggest among them. He walked to the window and peeked into the house secretly.

The rooster asked: "Donkey, what did you see?" "What did I see?" the donkey repeated, "I saw a table filled with all kinds of delicious food, and the robbers were sitting happily on the table. Around." said the rooster. "I hope this is for us." The donkey also said: "Yes! As long as we can get in." Then they discussed together how to drive away the robbers. Finally, they came up with a solution: the donkey stood on its hind legs and put its front legs on the windowsill, the dog stood on the donkey's back, the cat climbed on the dog's back, and the rooster flew up and sat on the cat's head. After they stood up, they agreed on a signal and started chirping in unison. The donkey roared, the dog barked, the cat purred, and the rooster crowed sharply. They broke the window at the same time and climbed into the room. The sound of breaking glass and the terrible noise completely frightened the robbers. In panic, they thought that the terrible monster was coming to find them, and they fled desperately.

After everything calmed down, these uninvited guests who had wandered into the world sat down and ate the food left by the robbers in a hurry, as if they had not eaten for a month. After they had eaten, they turned out the lights and each found a place to rest according to their own habits. The donkey lay on a pile of grass in the yard, the dog lay on a mat behind the door, and the cat curled up in a room still warm from the ashes. In front of the fireplace, a rooster is perched on a beam on the roof. After walking a long way, they became quite sleepy and soon fell asleep.

In the middle of the night, the robbers saw from a distance that the house had no lights and everything seemed quiet. They wondered whether they had escaped too hastily in panic. One of the more courageous robbers was going to take a look. When he walked into the kitchen, he found nothing unusual, so he fumbled for a box of matches and tried to light the candle. Occasionally he saw the cat's eyes that were shining like flames. He mistook them for the unextinguished charcoal fire in the furnace, and put the match forward to light it. But the cat didn't know how to joke. It got up and rushed towards the robber's face, spitting and scratching. The robber was startled, and hurriedly withdrew his legs and ran out the door. But when he got to the door, the dog pounced on him and bit him on the leg. When he was crossing the yard, the donkey kicked him again. The rooster was awakened by the noise and crowed desperately. The robber was so frightened that he ran back to the hiding place of his companions in the woods. He said to the robber leader with lingering fear: "How terrifying, a terrible person." The witch stayed in the house. She spat in my face and scratched my face with her long, skinny claws. There was a man hiding behind the door with a knife in his hand. stabbed me in the leg; there was a black monster standing in the yard, and he was beating me with a big stick; and there was a devil sitting on the roof beam of the house, and he shouted: 'Throw that villain to the Come here! '"

From then on, the robbers never dared to go back to the house, and the musicians happily lived in it. I bet they still live there.