Du Xinghe no longer learned from the Wolf of Huaguang, showed an introverted smile and said to Cai Xiaobai: "If you ask me such a question, it is like asking Newton's law of inertia. It's too simple. Do you have any difficult questions?"

Cai Xiaobai scooped the dimples that only appeared when he laughed, and said, "Simple? Tell me this simple answer first, and I will give you some trouble."

Du Xinghe answered Cai Xiaobai just like answering 1+1=2: "According to the physical properties of sound, sound has four characteristics, namely pitch, sound value, sound strength and sound."

"It's great, you really know, then I'll ask a little deeper, what is pitch? What is pitch value? What is pitch strength? What is tone?"

"Is this what you call a little deeper?"

Du Xinghe was so funny that Cai Xiaobai was making her laugh and cry. If Cai Xiaobai’s question just now was asking what Newton’s law of inertia was, then the current question was asking Newton’s formula for gravity acceleration!

"What, can't you answer?"

Cai Xiaobai thought this problem stumped Du Xinghe.

Huaguang Wolf also thought this theoretical question was really difficult! So he asked Du Xinghe in a low voice: "Brother, can you help me find the answer?"

Du Xinghe was too lazy to pay attention to the Wolf of Huaguang.

Tell Cai Xiaobai in depth: "Pitch is the level of the pitch, which is determined by the frequency of the object's vibration. The high frequency is high; the low frequency is low. The sounds that our human ears can hear are about 16 Hz to 20,000 Hz. The sounds used in music are about 27 Hz to 4,100 Hz. If you like composing, you must remember these. Pitch is one of the most important factors in the characteristics of the pitch and the most basic element that constitutes the melody."

Cai Xiaobai was a little surprised by Du Xinghe's understatement. Du Xinghe's answer was far beyond her imagination, and even beyond the scope of the textbook! How did this guy know so much? From his tone, it was obvious that he was not fooling around. Could he be so powerful?

Read the surprised expression of Cai Xiaobai from his visual memory. Hua Guang's Wolf was so happy that he praised Du Xinghe in his heart: "Brother, you are so talented!"

Du Xinghe was praised by the Wolf of Huaguang so much that he wanted to slap him twice! Such praise was like praising Luban to make a beautiful small bench, and Kuaibniz solved a one-element quadratic equation!

It's really too much!

Don't talk to Hua Guang's wolf anymore, so as not to be really decreasing your IQ.

Du Xinghe continued to teach Cai Xiaobai: "The sound value refers to the length of the sound, which is determined by the duration of the vibration of the pronunciation body. The longer the vibration lasts, the longer the sound, and the shorter the vibration lasts, the shorter the sound.... The stronger the sound refers to the intensity of the volume, which is determined by the vibration amplitude of the pronunciation body. The larger the amplitude, the stronger the volume; the smaller the amplitude, the weaker the volume.... The sound refers to the different colors of the sound, which are determined by factors such as the way, shape, composition and the nature of the pronunciation body."

After talking about the theoretical things, Du Xinghe summarized to Cai Xiaobai: "The role and significance of these four characteristics in the musical expressions of different styles and eras is different. In traditional music, the combination of sounds is mainly pitch and length. The tone is particularly important in works that express different styles. In some modern music works, the position of volume in musical expression may sometimes be improved... Do you know what I am talking about?"

Seeing Cai Xiaobai frowning and showing an expression that he didn't understand very much, Du Xinghe stopped talking.

Cai Xiaobai could not keep up with Du Xinghe's musical ideas at all.

Seeing Du Xinghe just spelling a few words and saying that he was stupid to Cai Xiaobai, the Wolf of Huaguang was so envious!

"Brother, I just want you to have one percent of your musical literacy. If you like Cai Xiaobai, you will be able to compete with it! This girl likes boys who understand music the most!"

As Hua Guang Wolf said, Cai Xiaobai really admires boys with musical temperament. At this moment, Du Xinghe said that Cai Xiaobai found that Du Xinghe was not as bad as they imagined. Could he be really a musical genius? He deliberately kept it in secret at school?

Cai Xiaobai was unwilling to give up and asked Du Xinghe again: "What is the clef of the midrange?"

"The C clef. The midrange spectral table is centered on the third line, and the central note is C, so it is called the C clef, also called the third line C clef."

Du Xinghe didn't have to think about such a simple question at all, and even the answers and reasons could be explained to Cai Xiaobai very clearly.

Cai Xiaobai opened the score book and drew a symbol on the score that ordinary people could not understand at all, and asked Du Xinghe: "What kind of symbol is this?"

"Do you want to draw a dot-four-point rest sign? You seem to have drawn less of a 'dot'."

Du Xinghe took the pencil from Cai Xiaobai's hand and filled in a "dot" on the rest talisman drawn by Cai Xiaobai.

Cai Xiaobai looked slightly embarrassed, but still asked Du Xinghe without admitting his consent: "What is the sixth-level sound in the natural small scale?"

"Middle and lower sound."

"All, half, all, all, half, all..."

Before Cai Xiaobai could tell the question, Du Xinghe already knew what Cai Xiaobai was going to ask and answered directly: "This structure is the structure of the natural small scale!"

"How many semitones are pure fifth degrees made of?

“Seven.”

"How many inversions are there in the seventh chord?"

“Three.”

"What is the eight-six shot?"

"Re-pitch."

“What is the difference between single beats, duplicate beats and mixed beats?”

"Sir Xiaobai! Can we ask some in-depth questions? I really don't want to answer simple questions like single beats, repeated beats, and mixed beats!"

Du Xinghe was annoyed by the question and asked Cai Xiaobai: "Don't ask me, let me ask you a few questions to see how your musical literacy is. What are the characteristics of Impressionist music?"

“The characteristics of Impressionist music…?”

Cai Xiaobai was stumped as soon as she came up. She still stayed at a relatively simple music theory level and had never been exposed to music genres and deeper characteristic cultures.

Du Xinghe saw that Cai Xiaobai couldn't answer, and roughly understood Cai Xiaobai's level and asked simply: "Do you know who the representatives of Impressionist music are?"

Frowning tightly, Cai Xiaobai still couldn't answer, and asked Du Xinghe shyly: "Who?"

Du Xinghe shook his head, not wanting to tell the two representative figures of the impressionist music "Debussy" and "Ravel", because it doesn't make sense to speak, and Cai Xiaobai still doesn't know.

After taking Cai Xiaobai's score, Du Xinghe drew eight empty notes that rose in sequence on the score, and then returned them to Cai Xiaobai.

He gave Cai Xiaobai a relatively simple basic composition question: "You add a few temporary marks to turn this scale into a g harmony minor key."
Chapter completed!