Tomorrow is Wu Cao's birthday, Zhang Xiaolin came out of the cave, and immediately flew into the sky, Xingzhou to Chang'an, but it was an hour away.

Seeing that the sky was already a little hazy, he suddenly remembered that he hadn't prepared a birthday gift yet, so he pondered for a while, and resolutely turned around and returned to his home, Taiyi Zhang's mansion.

The family was still in a dream, and Zhang Xiaolin did not fall asleep again, but played Tai Chi in the yard.

After practicing more than a dozen times in a row, the family got up one after another, and the servants didn't dare to disturb when they saw Zhang Xiaolin boxing in the yard, so they went directly to arrange breakfast.

Seeing that everyone had already gotten up, Zhang Xiaolin stopped and stepped forward to meet his parents, grandfather and others.

Taking advantage of the fact that Zhang Gongluo had not yet gone to the Tai Hospital, Zhang Xiaolin briefly talked about his experience during this time,

Zhang Gongluo heard that Zhang Xiaolin and the son of the Zhang family in Xingzhou formed a brother, and he was also very happy, he was preparing to develop his power, he had already heard of the Zhang family in Xingzhou, it was a martial family, and it had some strength, and the local government did not dare to offend them at all.

Zhang Chunhe and Zhang Chunwang have also been laid out everywhere at this time, and they have gradually spread out, and the Zhang family is already a famous family in Chang'an City.

I heard that Zhang Xiaolin came back this time to celebrate the birthday of Wududu's thirteen-year-old daughter, Zhang Gongluo and Zhang Chunhe looked at each other and smiled, Zhang Xiaolin knew that they had misunderstood, and he didn't say anything, there were some misunderstandings, the more he explained, the deeper the misunderstanding, it was better to deal with it calmly.

"Grandpa, I'm going to the martial arts family to celebrate my birthday, I can't go empty-handed, right? Why don't you give me a gift?"

"You guy, what do you want to give?"

"Can you go to your treasure trove and take a look, I'll pick and see if there's anything good. ”

"Your grandfather has patronized the family all these years and has not saved any treasures, but there are some vintage medicinal herbs, it seems that they can, you go with me to have a look. ”

Zhang Gong slightly took Zhang Xiaolin to the warehouse, this is the important place of the Zhang family, several major locks, several layers of iron doors, but inside are several large cabinets, a row of Bogu shelves, and the shelves are full of things.

As soon as Zhang Xiaolin entered the door, he saw a small iron bow on the shelf, about a foot long, and thought it was funny, so he said, "Grandpa, look, why is this bow so small?"

"It's not a shooting man, it's used by the sons and daughters of those palace nobles to shoot color heads. ”

"Shoot the color head?"

"That's right, it's to put some ornaments in front of you, and whoever shoots it will give it to whomever you want. ”

"Oh. Zhang Xiaolin understood, this game will also be available in later generations, but some use hoops, some use sandbags, it turns out that this kind of small bow and arrow was used to shoot in ancient times.

"This kind of thing, a plaything, is played by those young masters. ”

"That's good, give it to me. Zhang Xiaolin put it away as he spoke, there was a box more than one foot square on the second shelf, but it was carved from silver, which was particularly exquisite, Zhang Xiaolin opened the box, but found that it was actually a silk thread inside, and couldn't help but ask strangely: "What kind of line is this?"

"Hehe, this is a good thing, this is called dragon tendon, in fact, it is a special animal tendon, it was given to me by a music master, he saved his life back then, he insisted on giving it to me, he couldn't shirk it, so he accepted it, mainly used to make medicine primers. ”

"Medicine primer?"

"That's right, to the royal family, sometimes the prescription is some ordinary medicinal materials, not valuable, you must add some precious medicinal materials into it, but you can add precious medicinal materials, the medicinal properties have changed again, you can only prepare some unique precious materials, as a medicine primer, there is no medicinal properties, will not play a negative role, and the price of medicine is high, I last prescribed the prescription to the emperor, there is a dragon beard an inch and three points, originally a typhoid fever, a pair of ephedra soup can be, but how much is the ephedra soup a pair? Emperor Taishang is such a noble person, so can he take such a lowly medicine? ”

Zhang Xiaolin almost pounced, there is such a thing? Royal people can't take cheap medicine, they can only take expensive medicine, no wonder the royal disease is difficult to treat, there are too many rules.

"That's good, give it to me. ”

"You take it, in fact, to put it bluntly, it's useless, the music master is used to make strings, and I don't know what kind of animal tendon it is. ”

"Huh?" Zhang Xiaolin suddenly found a very familiar musical instrument: suona.

It turns out that there was suona in ancient times?

Seeing this suona, Zhang Xiaolin actually had an idea, send a music box, this thing is not available in Datang, and others can't make it, she will definitely like it.

"Alright, let's take these things. ”

"Didn't you say you were looking for a gift for Miss Samurai?"

"That's okay, just send these few. ”

"Send some of these things?" Zhang Gongluo's eyes bulged.

Zhang Xiaolin took these things, hurriedly walked out, found a woodworking workshop, and asked people to make two mahogany plates according to the inner size of the silver box, about one finger thick.

Zhang Xiaolin straightened the dragon tendons, flicked it with his fingers, determined the precise length of the notes such as Dolai Mi's instigation, and then ordered some small iron nails on the dense wooden board, according to the score of the Happy Birthday song: Shuttle Zipper Chop Fine, Shuttle Pull Solo Lot.......... A total of twenty-five notes, Zhang Xiaolin nailed twenty-five rows of iron nails of different lengths to the wooden board.

The dragon tendon was originally a string that the music master had made, Zhang Xiaolin wrapped this dragon tendon around these iron nails, and his fingers flicked up from the front of the wooden board, until the end of the last string, just finished singing this birthday song, the notes were quite accurate, Zhang Xiaolin was very satisfied.

Another plank cut a gap in the middle, and fastened the little bow to one end of the plank, and the bowstring was just in the gap, and a small wooden hook reached through the gap and fastened to the string of the little bow.

When the two planks are put together, the bow is drawn, and then the hand is released, and the bottom of the hook that hooks the bowstring will pass over the twenty-five strings, and a happy birthday song will play.

Looking at these twenty-five strings, Zhang Xiaolin suddenly remembered a poem:

Jin Se gratuitously fifty strings, one string and one pillar Si Hua Nian.

Zhuang Shengxiao dreams of butterflies, and hopes that the emperor will trust the cuckoo in spring.

There are tears in the pearl of the sea and the moon, and the blue field is warm and the jade is smoking.

This situation can be recalled, but it was already clear at the time.

Maybe now is the time, right?

Jin Se was originally also twenty-five strings, and for no reason, it was fifty strings after the strings were broken. It's such a coincidence with this happy birthday song that I made?

Zhang Xiaolin thought to himself, this poem is really apt. Suddenly, on a whim, he called a pen, ink, paper, and inkstone on the spot, wrote this poem with a pen, and took out a bottle of Yishou Dan from the Sumeru ring, took a look, there were more than a dozen in it, and poured out one, and found an empty jade bottle to put it in, sealed it, and asked the carpenter master to separate a piece of the wooden box, and put the poem and pill in it, and then the whole wooden box was assembled.

After installing it, Zhang Xiaolin tried a few times, and all the notes were played, but the speed was too fast and the sound was too small.

The voice was low, and he was prepared, so he took off the horn of the suona and prepared to amplify the sound through the horn.

The biggest problem is the speed of the bowstring return, Zhang Xiaolin thought about it for a while, and added a wooden groove to the gap in the wooden board, fixed the wooden hook of the string in the wooden groove, and artificially created some friction, sure enough, the bowstring return speed was more than twice as slow, which sounded decent.

Zhang Xiaolin glanced at it, it was still a little faster, and he added two wooden troughs to the outside of the wooden board, and the outer part of the wooden hook was made into a long wooden plank, which was embedded in the wooden trough, the friction increased, and the bowstring return time was even slower, which was basically the same as the rhythm of the guqin playing.

The two wooden planks are completely fixed, sealed on three sides, leaving an opening, the horn removed by the suona is installed in the opening, and then all the other gaps are sealed, and the sound is amplified several times when the strings are opened.

"Put this silver box on a wooden box. ”

The carpenter master took a look, the sterling silver box!

Put the bottom of the silver box lid and the bottom of the box on the bottom of the wooden box and the face respectively, the size is just right, Zhang Xiaolin has seen it with his divine sense, of course, it is tightly seamed. A gap was also opened in the lid of the silver box, exposing the wooden hook to the outside, and after the horn was fixed, some necessary decorations were also made, which made it look high-end and antique.

A simple music box is finally made.