"I didn't expect that this child's understanding of music theory is so profound that it is rare to explain it in such a simple and easy-to-understand way." Jiang Ya secretly admired in her heart, and her eyes were full of encouragement when she looked at Liu Yufan.

This is the first time Bai Zhifei has seen Liu Yufan. He originally had the intention of watching jokes. What a joke? If such a little kid is able to speak music theory well, he can become a professor at the Central Conservatory of Music. This is really Jiang Ya. Isn’t this a nonsense? If you want to find someone to talk about music theory, isn’t he the ready-made candidate?

Unexpectedly, Liu Yufan's "extraordinary expression" was that his opening remarks not only made Jiang Ya's eyes full of glory, but even he had to admit that this child was extraordinary. Although the things he said were not written according to the script, they were obviously even higher. If he had not had an in-depth understanding of music theory, he would not have said this in such a condescending attitude.

"Let's see what he said." Bai Zhifei also put away his contempt, and for some reason, he became a little worried, worried that this student named Liu Yufan would "threat" him.

It's funny to think that a child with no hair can actually make Bai Zhifei feel this "threatening", but when he saw the unconcealed appreciation in Jiang Ya's eyes, Bai Zhifei felt that his worry was not redundant.

"Okay, let's officially start now." Liu Yufan didn't know the little thoughts of Jiang Ya and Bai Zhifei. As he gradually entered the state, he had already found the feeling of being a teacher at the beginning.

"In this class, we mainly learn to understand four aspects: one is to have a preliminary understanding of the five-line score, two is to conduct simple rhythm training, three is to have simple visual singing, and four is to improvise creation." Liu Yufan said, turning around and writing down four learning goals on the blackboard.

"This child is really well-instructed. He actually teaches the music theory course model in regular music majors. However, can he grasp so much content?" Jiang Ya also took music theory courses, so she naturally knew that the contents written by Liu Yufan on the blackboard were all compulsory items in music theory courses.

"Okay, let's talk about the stalk of the stalk first. Before I start, I want to ask you if anyone is sitting or studying piano or electronic piano. If so, please raise your hand." Liu Yufan held a piece of chalk in his hand and looked at the audience and asked.

As soon as he finished speaking, more than half of the students raised their hands.

Chen Siying also raised her hand. At this moment, she had completely regarded Liu Yufan as a teacher. It was really what Liu Yufan had just performed on the stage. She looked so much like an experienced "old teacher". She was so surprised that Chen Siying, who was waiting to watch jokes, unknowingly entered the role of a student. Looking at other children, it was basically the same, and obviously she had ignored Liu Yufan's age. This can be seen from their subconsciously following Liu Yufan's words.

"Very good, let's put your hands down. It seems that most students have come into contact with keyboard instruments, which is very good, so at least everyone is familiar with stitches. Of course, it is necessary for students who do not learn keyboard instruments to understand stitches. Compared with simplified notations, stitches have a wider range of applications and more intuitive. If you learn stitches well, you can lay a good foundation for learning instrumental music, vocal music and even composition. Let's get to know stitches formally." Liu Yufan said, turning around and drawing five uniformly spaced horizontal lines on the blackboard.

"This is the five lines of the five-line score. Let me ask you a simple question. Does anyone know which line is the first line?" Liu Yufan said, smiling at the twenty or so students below.

However, his smile disappeared after a few seconds.

Because he found that none of these children raised their hands.

Jiang Ya shook her head secretly in her heart. These children only know how to practice the grading songs every day, and many of them play on their backs. Thinking that there are also students in this, she felt a little embarrassed. She couldn't even answer such a simple question. Her foundation in music theory is really bad.

Liu Yufan's heart sank. He had expected that these students' music theory foundation would be very poor, because under the current grading system, teachers generally ignore music theory, but he did not expect that it would be so bad!

If you don’t even understand the most basic knowledge of the five-line score, what’s the use even if you pass the ninth level? Is it called being able to play the piano? Liu Yufan felt sad for these children from the bottom of his heart.

"Okay, it seems that everyone doesn't know much. It doesn't matter. Let's start from today to learn from the beginning." Liu Yufan said, and turned sideways towards the blackboard, pointing to the horizontal line on the most side and said: "The five-line score starts from the bottom line, which is the first line, the second line, the third line, the fourth line and the fifth line. This bottom-to-top order, everyone must remember clearly." Liu Yufan said, using chalk to draw an oblique circle between the first line and the second line, and continued: "The space is formed between lines, called the five-line score. The order and line are the same as the lines, and they are also from bottom to top, namely the first, the second, the third and the fourth ones."

Liu Yufan said, and wrote a symbol at the beginning of the slate and continued to ask: "Does anyone know what this symbol is called?"

"I know this, it's a treble clef." Chen Siying said while raising her hand, and she could meet someone she knew.

"Well, it's a treble clef, Chen Siying, do you know what this symbol means?" Liu Yufan continued to ask.

"Ah? Isn't it just a treble clef? What's the point?" Chen Siying originally wanted to show off, but unexpectedly, Liu Yufan asked and found out that there was still something else, which stuck her. When Jiang Ya taught her, she didn't tell her what this symbol meant.

Looking at Chen Siying's embarrassed look, Liu Yufan felt funny in his heart, but his face did not show it. Instead, he continued to say patiently: "In fact, this treble clef is an abstract pattern of the English letter g. Let's see, this clef starts from the second line, which means it is recorded on the second line. We know that each note has a pronunciation name and a pronunciation." When Liu Yufan said this, he glanced at the bottom. Obviously, no one knew the difference between "pronunciation name" and "pronunciation name". He shook his head in his heart. The foundation was too poor, and it seemed that literacy was not an easy task.

"For example, when we sing the score, we can sing do, ri, mi, fa, sol, la, si. These are the roll names of seven sounds. In contrast, they also have the name of the sound. You can simply understand that the roll names are the nickname of each sound. When we sing it, we should call it its nickname. The pronunciation name is the big name of the sound, which is written terms. The pronunciation names of the seven sounds are c, d, e, f, g, a, b." Liu Yufan said while writing down the pronunciation names and the roll names of the seven sounds on the blackboard, and then pointed to g and said: "Look, this g is the big name of sol, that is, the pronunciation name."

Liu Yufan said, then pointed to the treble clef and continued: "Now everyone knows that this treble clef represents g, and it is recorded on the second line of the five-line score, which means what should the note recorded on this line be sung?"

"Sing g", some students below said.

"No, I should sing sol", and someone soon realized this mistake.

"Yes, everyone understands it very quickly. If it is a sing score, of course we have to sing its sing title, that is, sol. This time everyone knows what the treble clef means." Liu Yufan said with a smile. Looking at the students below, he let out a sigh of relief. It took so long to explain a treble clef. He was really worried that he would speak too quickly, and these students did not understand. It seems that his efforts were effective. Although he was speaking so slowly, it could allow them to deeply understand the stitch score, which was exactly his purpose.

"So with this g as the boundary, the downward direction is f, e, d, c, that is, fa, mi,ri, do. Then someone may ask, by the time ri, it has exceeded the range of the quintile spectrum, so what should I do? It doesn't matter, we call the excess part 'added line' and the 'added room'. For example, this ri is recorded on the 'added one', while the 'do' that is lower than it should be recorded on the 'added one'."

Liu Yufan spoke very carefully and slowly, but the twenty people below understood it very clearly. Obviously, Liu Yufan's easy-to-understand explanation was easier for them to accept.

Next, Liu Yufan did not talk about more things, but randomly wrote several questions on the blackboard and checked the results of his study. The result was satisfying him, and most people had mastered the knowledge he had just talked about.

"Okay, we've been exposed to so much content today. Next, let's do a few sets of rhythm exercises." Liu Yufan said, writing a few rhythms on the blackboard, and then said: "I'll talk about the practice method. This x symbol only represents the time value and does not represent the pitch. You can clap your hands and shout "big" in your mouth. If you encounter a rest talisman, you'll shout "empty". Come, everyone do it with me..."

After ten minutes of rhythm practice, it is a visual singing practice. Liu Yufan directly put the five-line score on the visual singing. Of course, the scope is limited to the content of the five-line score he talked about today. The effect is satisfactory. Although it still requires a while of effort to react, by the end of the training, these twenty or so people can already sing simple melodies under the guidance of the piano.

In the last part, that is, the improvisational creation, Liu Yufan was slightly depressed. Although the exercises he prepared were the simplest, they were basically simple, and the space left was monotonous, most people still couldn't do it. It was obviously caused by the defects in harmony knowledge. Harmony was not what Liu Yufan was going to talk about today, so when it saw that the effect was not good, Liu Yufan decisively gave up.

One class took fifty minutes, but the order was always very good, and no students showed an impatient look. This was thanks to Liu Yufan's interactive teaching method. During the whole class, the time of lectures and practice time was basically maintained one to one, and almost every student got the opportunity to practice. Liu Yufan gave almost every student a positive evaluation. This was impossible for such a classroom model in this class at this time. Most teachers still adhere to the "I'll talk and you listen" teaching model. Although some students will sometimes be allowed to do the questions on the stage, they are far from reaching the "interaction" like Liu Yufan.

Judging from the results, this music theory class was very successful, with lectures, practices, interactions, and students used their eyes, ears, mouths, and brains in class, and almost every sense was used. Under this comprehensive acceptance mode, the learning efficiency was much higher than usual.

"Okay, we'll finish this class today. Don't forget to do the questions left on the blackboard when you go back. I'll check them in the next class. Let's finish the class." Liu Yufan "waves his hand" and walked off the podium, but found that Teacher Jiang Ya was looking at him with a strange look.

(The fourth update is here, everyone can rest early after watching it! Good night!)

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Chapter completed!