The research of the piano has reached the final stage, but it has been delayed due to material problems, so Jiang Xingchen pinned all his hopes on Han Tie.

At the beginning of December, when the cold iron was shipped back, Jiang Xingchen was simply ecstatic, and immediately asked people to send the cold iron to the workshop for wire drawing.

Cold iron is a natural mineral, which does not contain many impurities and can be smelted directly. Soon the workshop made a batch of cold wire and sent it to the research institute.

However, Jiang Xingchen was full of hope, but it turned out to be a basin of cold water. The cold wire is good, but the sound quality of the test is not much different from other materials.

"How can this be, can't we really find other materials to replace copper wire?" Jiang Xingchen frowned tightly and muttered, his feelings very low. He thought it would be difficult to make a piano, but he didn't expect it to be so difficult.

He has been in this world for more than three years, and he has never seen copper, or rather, he has never seen copper like that on earth. Although the copper coin here is also called copper, it is a completely different metal. The yellow silver used to make suona looks similar to copper, but it is not the same copper as on earth.

With the exception of iron, many of the metals here are not the same as the earth. Purple gold, cold iron, and yellow silver are all not found on the earth, and even limestone is rare... In the beginning, the world felt similar to the earth, but the deeper you came into contact with it, the more different you became.

"I knew that this was the case, I shouldn't have put it in the monthly magazine in the first place...... Jiang Xingchen is also a little anxious now, if he can't study the piano this month, it will be small to be attacked. Bauhinia fans are sure to be very disappointed, and that's the last thing he wants.

"Hey, a lesson!" Jiang Xingchen sighed, the past three years have been smooth sailing with the help of the formation. He didn't even notice that he was a little flustered, and in the early days, he would never do such a thing as not being sure to say something first.

Shaking his head, Jiang Xingchen felt that his mind was a little messy, and walked out.

When Xian Ning saw Jiang Xingchen's appearance, she wanted to stop him and persuade her, but Wanrou grabbed her. He whispered: "Let him be quiet by himself, and we'll go to him again in a while!"

Jiang Xingchen left the research institute and walked forward aimlessly. The snow under your feet creaks and creaks, making it look very harsh in the open and cold environment.

Unconsciously. Jiang Xingchen walked to the top of the back mountain. That's when it stopped.

"Whew~" exhaled a breath, Jiang Xingchen looked left and right, and couldn't help but recall the first time he entered the vast mountains in his mind. It was in this place that Mei'er waited for herself for days in a row under the scorching sun.

As soon as he thought of Mei'er, Jiang Xingchen's thoughts were like springs, erupting violently from the bottom of his heart, and he couldn't suppress it anymore. I even want to go to the Lunaris Kingdom...... From the completion of the new town last year to the present, he has hardly been idle. Very tired. Now all he wants most is to close his eyes. Let Mei'er give herself a good head to press.

"Bang!" There was a sudden sound around him, Jiang Xingchen immediately woke up, and when he turned his head, he saw that it was a big pine tower falling.

"Where did this thing come from?" Jiang Xingchen looked up, couldn't help but be slightly stunned, and then showed a smile.

Just in front of him, on the branch of a pine tree, Niel's pet pom-pom was squeaking at him, her big black eyes blinking, and her little paws holding a large pine tower.

After screaming twice, the little pom-pom raised its paws, and the big pine tower threw it over. Jiang Xingchen raised his hand to catch it, and said with a smile: "You little thing, find food by yourself, do you still want me to help?"

"Squeak!" the little pom-pom jumped on the branches, then quickly jumped upwards, and on the thin branches at the top of the tree, there was a large pine tower.

Jiang Xingchen looked at the movements of the little pom-pom, and said secretly in his heart: "What a velvet mouse, I think it's a squirrel......

Jiang Xingchen was thinking about it, and the little pom-pom had already reached it. Probably because the branches were too thin, the little pom-pom hesitated a little, looked left and right, and then the big tail wrapped around a thick branch, and then leaned out with his whole body.

"Oh!" Jiang Xingchen's eyes widened, this little guy actually used the power of his tail to provoke his entire body, it was really powerful.

"Squeak!" took off the big pine tower, the little pom-pom screamed excitedly, jumped back to the thick branch, and threw the pine tower to Jiang Xingchen.

At this time, Jiang Xingchen was suddenly stunned, and did not reach out to catch it, and the pine tower fell to the ground with a click.

"Squeak!" the little pom-pom was very dissatisfied, jumping on the branches and shouting.

Jiang Xingchen didn't seem to see it, he was still stunned, and then suddenly shouted: "I understand, it turns out that I was wrong from the beginning!"

Before the words fell, Jiang Xingchen turned his head and ran back. The little pom-pom stupidly watched Jiang Xingchen run away, and there was obviously a dumbfounded word written in his big eyes.

Jiang Xingchen returned to the research institute and went directly into the house to start working. The moment the tail of the little pom-pom wrapped around the branch, he suddenly remembered that the copper wire seemed to be threaded. In his previous life, he just glanced at it on the Internet, and when he saw copper, he always thought it was copper wire, but the small pompom reminded him.

This memory made him feel like a lightning bolt in his mind, piano, piano, could it be that the piano was originally not used for copper wire, but steel wire, and copper wire was wrapped around the steel wire!

Therefore, Jiang Xingchen couldn't stay any longer, and immediately ran back to the research institute.

The strings were still made of cold iron, but he tried to wrap the original yellow silver wire around the top of the cold iron wire. I tried again, and sure enough, the timbre changed, and the voice was very deep.

"It turns out that the copper wire is only responsible for the bass!" Jiang Xingchen patted his head hard, why didn't he think of it.

Continuing to test, Jiang Xingchen found that the sound quality of Han Tie was still not good. However, at this time, he didn't think it was a problem with the material, it was completely a problem with the manufacturing process.

The steel wire of the previous life, regardless of strength and tensil, is not able to be completed by the world's technological level.

However, the strength and tensile strength of cold iron is inherently stronger than that of steel. I couldn't make something like alloy, but I didn't have a problem adding monster bones. His folding repeater is the addition of demon beast bones, and the strength and stretch of the bowstring are very high.

"Fortunately, only one leg bone was sold at the auction, and most of it remained!" Jiang Xingchen was glad in his heart, and immediately ordered someone to send all the demon beast bones to the workshop, and at the same time beckoned the old man to come over. If you want to smelt the demon beast bones, you must rely on the old man's profound cultivation in order to promote greater firepower.

Wan Rou and Xian Ning looked at the busy Jiang Xingchen, and they all showed a look of worry, although Jiang Xingchen had a new discovery, although it was happy, but what if it didn't succeed. Xian Ning has been engaged in research all along, and it is clear that such a blow is very uncomfortable.

It can be said that until the newly designed strings were tested, they were mindful. Until three days later......

"It's a success!" A cheer erupted in the research institute, Jiang Xingchen exhaled a long breath, sat down on the chair, and a smile appeared on his face.

"It's successful, it's finally successful!" Xian Ning and Wanrou were so excited that they almost cried with joy, the design of this piano was too difficult, the structure, procedures, materials, parts, and so on were indescribably complicated.

Xian Ning can be sure that this piano is much more difficult than any invention that he researched and designed.

And at this time, the two women's worries about Jiang Xingchen were finally put down, and Xian Ning looked at Jiang Xingchen with a look of admiration in her eyes.

The craftsmen were equally excited and howled with joy, the piano had tormented them for too long. There was even a time when they thought that the thing Jiang Xingchen came up with was simply impossible to realize.

But now, the thought that the first King of Musical Instruments also had a part to play in them makes these craftsmen excited.

Only the old man kept pouting on the side, these strings were all fused with cold iron and twenty-fifth level demon beast bones, and it was estimated that any one taken out could be worth hundreds of thousands. This is a musical instrument, and the cost is too high.

After a long time, Jiang Xingchen waved his hand to ask everyone to stop. Now it's just that the strings meet the requirements, and there's still a lot of work to be done. These strings are definitely not enough, thick and thin, and you still need to use a lot of strands, which can only be determined when tuning. In addition, the soundboard should also be selected to see which wood is more suitable.

Subsequently, everyone in the research institute was busy again, and the craftsmen were all enthusiastic, and the work they did was even more beautiful.

Xian Ning led the human system zuò action, a three-layer lever linkage system, and pedals. Craftsmen build the shell, and there are some parts. Wan Rou and Jiang Xingchen were in charge of tuning, and there were some adjustments such as audio codes.

And where in the iron-making workshop, a large amount of cold iron and demon beast bones are consumed, and a large number of silk threads of different thicknesses are produced.

The old man looked at the decreasing demon beast bones, that flesh hurt. It is impossible to use all of these silk threads, and most of them are used as real yàn...... How good it would be if these were all made of folding crossbows, that kid still has a piece of purple gold worth thousands of catties in his hand, hundreds of folding crossbows, it's scary to think about!

On the afternoon of December 15th, the institute erupted in cheers again, and the piano finally succeeded.

"It's beautiful!" the huge white grand piano lay out in the room, and everyone let out a cry of admiration. The pride in the hearts of the craftsmen arises spontaneously, this is the king of musical instruments, just the cost can scare people to death, not to mention how many materials are used, how much labor is spent, that is, those demon beast bones are worth at least tens of millions.

"Xingchen, won't you show us the beautiful voice of the King of Musical Instruments?" Wanrou asked suddenly.

When she said this, everyone's eyes focused on Jiang Xingchen's body, with a look of anticipation.

Jiang Xingchen shook his head and said with a smile: "I'm not skilled now, I have to be familiar with it for a while!"

Jiang Xingchen didn't dare to hold it up this time, the piano has a range of seven octaves, eighty-eight keys, even if Jiang Xingchen has a formation, a keen perception of fluctuations, and extremely flexible fingers, he needs to be familiar with it for a while.

In addition, he had to prepare some classic piano pieces for the celebration.

And during the time when Jiang Xingchen was fully committed to the piano system, the outside world's doubts about the celebration were getting louder and louder, and many Bauhinia fans couldn't help it, and they all rushed to Xingchen Ling......!