For musical instruments, Ding Yi knows guitar and drum kit. In later life, I was bored and enrolled in two classes for a few months, but then I stopped studying because of work.

There are more than 60 tuners and craftsmen in the musical instrument workshop, and their skills are quite good. The sound of the drum kit is a little different, but it is also very small.

Sitting in front of the drum kit, Ding Yi asked, "His Royal Highness the Crown Prince is familiar with musical instruments?" ”

Li Chengqian replied: "This is unfamiliar, let Shi Pinghou laugh!" ”

"Nothing to do, the minister will come for a while, His Royal Highness the Crown Prince will listen to it and evaluate it."

"I didn't expect Shi Pinghou to be so versatile!"

Ding Yi didn't talk nonsense, and lifted the drum stick to a small apple accompaniment!

"Boom! …… Boom, boom, boom! Huh! ……”

Although Li Chengqian doesn't know musical instruments, he also listens to music. Pipa, reed sheng, gonghou, flute, waist drum, these instruments are not as good as this set of drums.

I don't know if the music played by Shiping Hou is good, or this instrument is good. Li Chengqian only felt that he couldn't help but shake his head with this rhythm, so shy! But I can't help myself!

Well? How did it stop? No! I'm going to continue!

"His Royal Highness the Prince, how is it?" Ding Yi also saw him shake up with the rhythm just now, so he asked him.

Li Chengqian was still reminiscing at the moment, and said to Ding Yi: "Shiping Hou, I don't know what the name of the song you just played?" ”

"Well, this is just an accompaniment, this piece is not worth mentioning!" Ding Yi couldn't say anything about the little apple, the Divine Comedy was really extraordinary!

"This song is listened to, the rhythm is bright, and people can't help but follow the rhythm...... Shaking! "Li Chengqian held back for a long time, he really couldn't speak!

"Hah...... Well, that's true, in a few days the ministers will organize a concert like a book club, I wonder if His Royal Highness the Crown Prince can enjoy it? ”

Li Chengqian thought about it and probably wouldn't be reprimanded by his father, so he said: "At that time, Gu will definitely visit." ”

After a topic, the two chatted again, and Li Chengqian returned to the palace.

As soon as Ding returned home, Li Tai was still calculating the one-dimensional quadratic equation!

"His Royal Highness King Yue, it's getting late, should you go back?" Ding Yi reminded.

Li Tai looked up at the sky and said, "Okay, this king will take it back!" ”

"His Royal Highness King Yue, why don't I explain it to you? This question is a bit difficult for you! Ding Yi said kindly.

Li Tai said angrily: "This king will figure it out, you don't need to solve it!" ”

"Oh well! Goodbye, King Yue! Ding Yi took a pose of invitation and faced the door.

Li Tai took the paper and left with the servants!

Cut! Brat! Quite a big temper!

……

Li Chengqian returned to the East Palace for dinner, and then went to greet Li Er and Empress Changsun.

"Are you going to find Ding Yi today?" Li Er asked.

"Yes, Father!"

"How does it feel?"

Erchen first went to the bicycle workshop with Shi Pinghou and saw how bicycles were produced. I also saw that the Marquis of Shiping gave Li Siwen a lot of suggestions, all of which were about businessmen and craftsmen. Later, I went to the musical instrument workshop and listened to Shi Pinghou play a song with a set of drums. Erchen felt that although the Marquis of Shiping acted strangely, he also had his own style. Self-contained! However, Erchen felt that it was very inappropriate for the Marquis of Shiping to be the marquis, but to do the things of the merchant and craftsman. Li Chengqian told what he saw today and his own opinions.

"Do you think it's inappropriate for Ding and his party to be a merchant and craftsman?" Li Er asked.

"Yes, Erchen thinks that since the Marquis of the Tang Dynasty is both literary and virtuous, it is a bit cheap to do the things of businessmen and craftsmen!"

Li Er glanced at his eldest son with a little disappointment, and said, "You don't know yet, Qingque has already arrived at Ding Yi's Mansion before you go!" ”

Li Chengqian really didn't know about this, but Li Er now mentioned Li Tai, which made Li Chengqian's heart tighten, and said: "I don't know, when Erchen went, Shiping Hou just went out, and Erchen also went to the workshop together?" ”

"Qingque learned math with Ding Yi before, you know!"

"I've heard about this!"

"Then do you know what Qingque was doing in Ding Yifu today?"

"Are you going to study math?" Li Chengqian guessed.

"As soon as Qingque left today, as soon as Ding came out of the question, he asked Qingque to return to his mansion until the Jingjie drum sounded. I'm still solving that problem! ”

This is something that Li Chengqian didn't expect, what is it that makes Li Tai so fascinated!

"Alright, go and say hello to your mother!" Li Er drove people directly, and he didn't find out what he meant.

Li Chengqian had no choice but to retreat and go to find Empress Changsun.

"Well, the Queen Mother knows about it, too. Qian'er, do you think that businessmen and craftsmen are cheap things? After listening to Li Chengqian's conversation with Li Er, the eldest grandson asked.

Li Chengqian replied: "Erchen thinks so! ”

The eldest grandson didn't explain much, but said: "Qian'er, as the prince, you have to listen more, watch more, do more, and say less." These days, you just follow Ding to see what he does, don't ask or disturb him. ”

Although Li Chengqian was curious, he also responded to the words of his eldest grandson.

Li Chengqian, who returned to the East Palace, carefully recalled the conversation with Li Erchangsun, could it be that what he thought was wrong? But the masters have always taught like this, and he doesn't touch these things on weekdays, and he has his own money every month. If you need something, you can also let people buy it, and occasionally touch some when you go shopping by yourself. That's what it says in the book! I also heard that Shi Pinghou cooked by himself and opened a restaurant! The gentleman is far away from the kitchen!

I was thinking about it in my head, and I couldn't sleep......

……

The opening concert of this Tang Dynasty is very restrictive, and this singing thing is considered a cheap thing. How could the people of Datang think of the prosperity of the future generations!

And the amplification equipment can't be replaced with some loudspeakers, and if someone catches it, it will be killed! I'm so scared!

It took 10 o'clock to check some homemade horns and draw the pattern.

I didn't go out the next day, so I stayed at home and made a horn. Li Tai didn't bother him, but Li Chengqian came!

Looks tired, kid! Pay attention to your body! After the greeting, Ding Yi ignored him. I'm still busy!

Let the blacksmith make ten sheets of iron, one large and the other small. There are also eleven tubes about five centimeters in diameter, and one tube about ten centimeters in diameter.

Roll the iron sheet into a trumpet shape, and the small mouth is just enough to insert a small tube into it. Ten openings were made on one side of the large pipe, and an opening was made on the other side, and the small pipe was inserted, and molten iron was poured on it.

The rolled iron sheet is nailed and glued to ten small tubes with molten iron.

After handling it, put a layer of cotton cloth on the small tube on the other side.

Can't pick it up! Heavy!

I made a shelf and put this extra-large loudspeaker on it!

shouted at the cotton padding tube!

"Hi everybody! Dry up! ”

It works very well!!

…………