The stage is wide and large, and it is not much different from later generations. The background is the beautiful scenery of West Lake, the lotus leaves are green, the lotus flowers are blooming, and there is also a small bridge with several shapes of people on it.

Hey, Xincheng seemed to have discovered some secret, pointed to the floor and shouted, "There are small eyes on it." As she said that, she squatted down and looked inward.

Xiao Zhao smiled and introduced: "There is a loudspeaker inside. The sound on the stage can be amplified if it is transmitted."

"Really?" Xincheng turned his big eyes, opened his mouth and screamed twice.

The little girl's voice echoed in the empty theater. The effect of the echo wall and the amplification of the loudspeaker were really obvious.

Hahahaha, the wicked girl made a crisp laugh, which was also increased and transmitted to all directions.

Li Lizhi was quite surprised. She looked around at the structure of the theater, thinking about how the sound became louder and there was an echo.

In the era when there were no loudspeakers, it was fine to perform indoors, but the distance was close and shielded. But if it was outdoors, there were a large stage, singing and playing on it, it was probably only the people in the front rows could hear clearly, and the people behind could only listen intermittently.

Therefore, in ancient times, if you want to become a singer or something, your voice was very high. According to historical records, there were not many such singers. During the prosperous period of vocal art in the Tang Dynasty, only Yongxin and Niannu were famous for their pitch.

According to legend, Xu Yongxin was a famous singer during the Kaiyuan period. He was born into a daughter of the Le family. He was selected as a palace at the end of the Kaiyuan period and was born in Yichunyuan. She is beautiful and smart, especially good at singing, and can change her voice.

Han E and Li Yannian died for more than a thousand years, no one can follow his ability, only Yongxin can compare with them. "I met the bright moon in the autumn and the clear and empty palace", Yongxin "has a sound of his throat, and the sound of the nine roads."

Her singing range is very wide, even exceeding the height reached by the instrument. According to legend, Emperor Minghuang of Tang once asked the palace musician Li Mo to play the flute as Yongxin, and the flute body burst at the end of the song.

Once, Emperor Xuanzong of Tang had a big banquet at Qinzheng Building. There were thousands of viewers, and there were many people talking, gathering and making noise, drowning out the sound of singing and dancing. Emperor Xuanzong was furious and wanted to return to the palace after the banquet. The eunuch Gao Lishi immediately suggested to Emperor Xuanzong: Only by appearing in the singing can the noisy voice be suppressed.

After Emperor Xuanzong agreed, Yongxin slowly climbed the tower, "lifted his hair and raised his sleeves and played the sound of the mantle", "Those who are happy hear the courage, and those who are sad hear the heart are heartless." Millions of viewers were suddenly silent, immersed in this wonderful song, "The square is as quiet as if there is no one."

Niannu was also a famous singer in the Tianbao period. Historically, she was "sexy, good at singing, and the best among palace philosophers". One day, the palace hosted a banquet to entertain guests, and the voices were noisy and uncontrollable, so everyone stopped playing.

Emperor Xuanzong of Tang ordered Niannu to appear and sing, and twenty-five people blew the small tubes to accompany him. The singing and flute sounds chased each other, which was extremely beautiful.

It is difficult to suppress the noise of the audience with one person's singing, but after all, there are only a few people.

It was precisely after listening to the play and watching the performance that Xu Qilin felt his shortcomings, so he thought about using local methods to solve this problem. Of course, in an outdoor open space, the effect of doing this is reduced.

In addition to the amplification facilities, there are also lights in the theater. More than a dozen bronze mirrors are reflected on both sides of the stage. Although it is very simple, it also compensates for the defects of slightly poor indoor light.

Aiko and Xincheng jumped and shouted on the stage. Fortunately, it was still early before the audience could enter, so no one saw the two princesses playing.

"Let's go, let's go, the time is almost over, let's go to the private room!" Princess Changle couldn't stand it anymore, for fear that there were too many people and it would be bad to spread it out, so she led the two little sisters and greeted Xiao Zhao off the stage.

The theater is divided into two floors, with a total of seven private rooms on the second floor. In the middle is Xiao Zhao's keep. Unless she doesn't come, she will come to this private room.

There are five rows of ordinary seats in front of the first floor, and a row of long tables in front of the seats, which can be placed for food and drink; the back of the ordinary seats is one foot higher, and there are seven private rooms, all covered with curtain cages.

It can be said that the theater can accommodate not many people, and it will not exceed 300 people if it is full. This arrangement also shows that it is not something that ordinary people can come in often to entertain and entertain.

It’s not that I can come in often, but it’s not impossible to save some money and watch two games a year.

In fact, even if you are rich, ordinary people don’t have so much time to watch operas and listen to music. They are busy with life and have no stable and leisurely citizen class at all.

In a metropolis like Chang'an, the situation is even better. There are many powerful, bureaucrats and rich people, and the entertainment industry is relatively developed, so there is no need to worry about no one visiting it.

Princess Changle took three little girls to the second floor, entered the private room, sat around the table, ate fruit and snacks, and chatted casually.

As time passed, the audience gradually entered the venue and the noise gradually became louder. Several waiters, who looked like waiters, shuttled through the theater, bringing the snacks and drinks that the audience wanted.

People have also entered the private room next to it. Although booking tickets are not limited to the high or low, the ticket prices of the private room are indeed very high. The second floor is even more evil than the first floor. Those who can afford it are either rich or noble.

The three little girls were eating, drinking, and joking, while Li Lizhi picked up the play and read it slowly.

This kind of drama is also Xu Qilin's creativity, which is a bit like the program list of later generations. In addition to the main drama "Meeting", there are also singing and dancing and hundreds of operas in front, which is considered a hot spot.

"Smiling in the Sea", singer A Ke. Princess Changle nodded gently. She had never seen her before, but she heard Jinyang and Xincheng say more than once. A blind girl sang very well, which is really a pity.

"Erquan Yingyue", the performer Zheng Tuantuan. I have heard of this name. It is Xiao Zhao's piano skills teacher, and A Ke also taught her.

After watching these two, Princess Changle was no longer interested in the following hundred plays and turned directly to the main drama "Meeting".

Although it was serialized in "Minshengbao", the precedent of the story was introduced in the memorial. A white snake cultivated to become an immortal. In order to repay the kindness of a thousand years ago, she went out to find a benefactor with her maid Xiaoqing.

"The beautiful scenery of West Lake in March, the spring rain is like wine, willows and smoke; if you are destined to meet thousands of miles, it is hard to hold hands without fate; if you are able to practice the same boat, you can sleep together after ten years; if you have luck for thousands of years, you will be together in front of you..."

Princess Changle smiled faintly. Although this word is popular, it can be read easily, but I don’t know what it looks like when singing it.

A little curious, Princess Changle looked up and asked, "Xiao Zhao, have you seen this play rehearsal? Are the songs in it good?"

"It sounds nice!" Xiao Zhao nodded, put down the drink in his hand, and said, "A Ke sang the best, but unfortunately her eyes couldn't see and could not act, so she had to let others sing."

Princess Changle pursed her lips and said, "When will I ask A Ke to come to my mansion? Is it convenient?"

Xiao Zhao blinked and said, "Your Highness the Princess invites you, there must be no problem. I will talk to A Ke first so that she won't know about this, and then politely refuse."

Princess Changle was a little confused. What is her identity? It was already a compliment to say "Ask". But then she thought that A Ke was a blind girl, and she might have a strange temperament. Maybe she was unwilling to join a wealthy family!

At this time, the vocals outside were louder and more people came. But it was not long before the performance time came, and the seats were filled with audiences.

First, there was the promotion of the "Minsheng Daily" and the ordinary singing and dancing performances in the theater a few days ago. People are still looking forward to this new play that premiered.

Of course, there were many idle people in Chang'an City, and the atmosphere in the Tang Dynasty was also open. Women did not leave the gates of the dynasties like the ones behind, and some women came very much. There were many princes, nobles, rich merchants, and some women.

With a ting dong, the performance officially began. The bands on both sides of the stage played an ancient music, which was a sign of the opening and also gradually stopped the noise.

After the song, A Ke slowly walked onto the stage from the side in a light green dress. He was already familiar with his journey, and he didn't need anyone to support him when he went on the stage. He probably came to the center in a few steps, turned around and bowed to the audience.

After a few moments, the melodious music started to sound. First, the guqin played a surging sound, then the flute and the sanxian were in the leisure field. The steady drum beats also sounded, and the beaten rhythm was erratic.

"Smile in the sea, the tide on both sides of the shore..." A Ke opened his singing voice, and the clear voice echoed in the air.

Some people heard about the desolate Liao Luo, some people heard about the passion, some people heard about the leisurely and happy life, different states of mind, different life, and their feelings and understanding of the songs were also very different.

Princess Changle looked at A Ke in the focus of the lights on the stage through the curtain cage, smiling at her head. This voice and this singing are indeed refreshing.

Xiao Zhao, Jinyang and Xincheng also listened quietly. They were their acquaintances and friends. They like A Ke and her singing.

As soon as the song stopped, the ending music was still lingering. A Ke bowed and bowed, and the audience realized that the singing was over.

The applause started, and at first there were only a few people, but later most people. Even if A Ke didn't know that she was blind and did not admire her self-improvement, she would be moved and cheered for this wonderful song.

"A Ke, A Ke, A Ke—" Xiao Zhao shouted rhythmically.

Yizi laughed twice and shouted to the rhythm, her two small fists undulate rhythmically in front of her chest.

"A Ke, A Ke, A Ke——" Xincheng jumped onto the chair, stretched his calf, and worked harder.

Although the voices of the three little girls were almost covered by cheers and applause from outside, no one could surpass the true feelings they showed.

It was rare to be indulgent and cheerful. Princess Changle smiled and applauded, and did not stop the three little girls from cheering.

A Ke bowed to the curtain call again, turned around and walked to the side of the stage. A maid came forward to greet her and helped her down the steps.

"I heard that he is a blind girl, but she is beautiful, and she is even more beautiful and has a rare good singing voice!" In a private room, the lady drank the eight-treasure tea she brought with her family and said with some anticipation: "How great would it be if she could be taken to our house."

Hehe, the middle-aged man next to him laughed twice, shook his head and said, "My wife doesn't know anything. Many people have the idea of ​​her, but she is not a musician, but a good man, so how can she be a sing genius?"

"That's how it is!" The lady drank tea and stared at A Ke's back thinking about it.

"This girl has also gone to Jiucheng Palace to perform for Your Majesty and all the nobles, and was also called by Xu Chongrong as a sister." The middle-aged man said: "I heard that she also refused the invitation to join the sect. The royal family cannot be recruited, let alone princes and ministers."

The lady nodded and said, "I just talked casually, but I didn't expect her to have such a story. Well, there is another performance. It's her master, Mr. Zheng!"

Zheng Tuantuan went to the stage with a pipa in his arms, bowed and saluted, sat down in the chair the maid put down, calmly focused, and pulled out the strings.

Like a sigh full of bitterness, the pipa music brought people into the sad and profound music. The whole audience was quiet, and only the music flew...

…………………

Xu Qilin, who is far away in Xin'an, didn't feel the warm atmosphere at all. He was busy making refractory bricks, preparing to start a blast furnace, and leading the new era of smelting in the Tang Dynasty!

There is no way. No one knows the role of bauxite, no one knows the manufacturing of refractory bricks, and no one knows the importance of building blast furnaces, hot air, and coke for melting iron.

Since artificial iron smelting technology was invented around the world, until the 1970s, human beings were in the broad Iron Age, including the traditional Iron Age before the Industrial Revolution, and to the post-Iron Age or the Steel Age afterwards.

Due to the relationship between technology and materials, early artificial iron smelting technology mainly included two important links: iron smelting and steel smelting.

The iron smelting process is roughly: using fuels such as burning firewood, coal or charcoal to heat iron ore mainly oxide or iron sulfide. After reaching a sufficiently high temperature, the carbon in the fuel combines with oxygen or sulfur in the iron ore to escape into a gas, reducing the iron in the iron ore.

Since the reduced iron still retains sulfur, phosphorus, silicon, etc. in the iron ore, as well as excess carbon and other impurities. The products obtained from iron smelting are called pig iron, which are brittle and hard in nature and are usually not suitable for direct use.

Therefore, after the iron smelting is completed, there must be a process of steel making, that is, removing impurities and oxides from pig iron to obtain clean and excellent steel products.

From this process analysis, it can be seen that in ancient times, liquid pig iron may have been obtained due to overheating of the furnace or excessive fuel ratio, but it must not be produced on a large scale like later generations, or even directly transformed from iron into steel.

It's very simple. The furnace temperature is not enough, and the melting point of the iron needs about 1,500 degrees. It is difficult to achieve it before the furnace, wind power, fuel, etc. are upgraded.

In the tenth century AD, China began to use coal for iron smelting; coke began to be used in the sixteenth century; and piston bellows blasting technology appeared in the seventeenth century.

By the Ming Dynasty, in "The Creation of Things in Heaven", there was a description of the most important process in the modern steel production principles, namely, direct casting with pig iron, and throwing and sprinkling slag-making agents.

Xu Qilin doesn’t have to be too advanced. It has improved the smelting technology for nearly a thousand years, which is already a earth-shaking change and can be recorded in history.

While carrying out various preparations for the large-scale steelmaking and waiting for the court's reply to him, Xu Qilin also asked the explorers to find the quartz stone mine.

The greatest source of wealth is to make glass. The Phoenicians combined quartz sand and natural soda, then melted it with a special stove to make glass balls, making a fortune.
Chapter completed!