Du Xinghe didn't learn the wolf of Huaguang anymore, showed a restrained smile, and said to Cai Xiaobai: "If you ask me such a question, it's like asking what Newton's law of inertia is, it's too simple." Do you have any difficult questions? ”

Cai Xiaobai pinched the small dimples that would only show when he laughed, and said, "Simple? You tell this simple answer first, and I'll give you a hard time when you say it. ”

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

"Yes, you really know, so let me ask a little deeper, what is pitch? What is Tone Value? What is Pitch Intensity? What is Timbre? ”

"Is this what you call a little deeper?"

Du Xinghe couldn't cry or laugh because of Cai Xiaobai. If Cai Xiaobai's question just now was asking what Newton's law of inertia was, then the current question is asking the formula of Newton's gravitational acceleration!

"Why, can't you answer?"

Cai Xiaobai thought that this question stumped Du Xinghe.

The Wolf of Huaguang also felt that this kind of theoretical question was really difficult! asked Du Xinghe in a low voice: "Big brother, do you want me to help find the answer?" ”

Du Xinghe is really too lazy to pay attention to the wolf of light.

Tell Cai Xiaobai deeply: "Pitch, that is, the degree of sound, is determined by the frequency of the vibration of the object. The frequency is high, the tone is high; The frequency is low, the tone is low. The sound that our human ears can hear is between 16 and 20,000 hertz per second. The sound used in music ranges from 27 hertz per second to 4,100 hertz per second. You love composing, be sure to keep these in mind. Pitch is one of the most important factors in the characteristics of a tone and is the most basic element that composes a 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 does this guy know so much? Listening to his tone, he was obviously not fooling, could he really be so powerful?

Reading Cai Xiaobai's surprised expression from his visual memory, the wolf of Huaguang was secretly refreshed, and praised Du Xinghe in his heart: "Big brother, you are so talented!" ”

Du Xinghe was praised by the wolf of Huaguang and wanted to reward him with two slaps! Such praise is like making a beautiful little bench in Quaruban, and Qualebniz has solved a quadratic equation!

It's too much of a fall!

Don't talk to the wolf of Huaguang anymore, so as not to really lower 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 articulatory body. The longer the vibration lasts, the longer the sound, and the shorter the vibration lasts, the shorter the tone. …… Pitch intensity, which refers to the intensity of the volume, is determined by the amplitude of the vibration of the articulatory body. The amplitude is large, and the volume is strong; The amplitude is small, and the volume is weak. …… Timbre, which refers to the different colors of sounds, is determined by factors such as the way the articulator vibrates, the shape, the composition, and the nature of the articulator. ”

After talking about theoretical things, Du Xinghe summarized to Cai Xiaobai: "These four characteristics play different roles and meanings in the musical performance of different styles and eras. In traditional music, the combination of tones is dominated by pitch and length. Timbre is especially important in works that express different styles. In some modern musical compositions, the status of volume in musical expression may sometimes be raised...... Do you know what I'm talking about? ”

Seeing Cai Xiaobai frowning, showing an expression that was not very understanding, Du Xinghe stopped talking.

Cai Xiaobai couldn't keep up with Du Xinghe's music theory ideas at all.

Seeing that Du Xinghe casually threw a few sentences and said stupidly to Cai Xiaobai, the wolf of Huaguang was really envious!

"Big brother, I want you to have one percent of your musical literacy, so that Cai Xiaobai is completely handy! This girl likes the boy who knows music the most! ”

As the wolf of Huaguang said, Cai Xiaobai really appreciates boys with musical temperament, and at this moment, Du Xinghe said, Cai Xiaobai found that Du Xinghe was really not as bad as they imagined. Was he really a musical genius? Deliberately hiding at school?

Cai Xiaobai was unwilling, and asked Du Xinghe again: "What is the alto clef?" ”

"C clef. The alto clef is centered on the third line, and the central note is the C note, so it is called the C clef, also called the third line C clef. ”

For this kind of simple question, Du Xinghe didn't have to think about it at all, and he could even explain the answer with a reason to Cai Xiaobai very clearly.

Cai Xiaobai opened the score, drew a symbol on the staff that ordinary people couldn't understand at all, and asked Du Xinghe: "What symbol is this?" ”

"Do you want to draw a dotted quarter rest? You seem to have drawn one less 'dot'. ”

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

Cai Xiaobai's face was slightly sneered, and he still refused to admit defeat and asked Du Xinghe: "What is the name of the sixth level in the natural minor scale?" ”

"Mid-to-mid."

"Full, half, full, full, half, full, full, full, full......"

Without waiting for Cai Xiaobai to say the question, Du Xinghe already knew what Cai Xiaobai wanted to ask, and replied directly: "This structure is the structure of the natural minor scale!" ”

"How many semitones is a pure fifth?"

"Seven."

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

"Three."

"What kind of beat is eight or six beats?"

"Remake."

"What's the difference between single-beat, double-beat, and mixed beat?"

"Xiaobai! Can we ask some in-depth questions? I really don't want to answer such simple questions as single beat, double beat, mixed beat! ”

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

"What are the characteristics of Impressionist music......

Cai Xiaobai was stumped as soon as she came up, she still stayed at a relatively superficial basic level of music theory, and had no contact with music genres and deeper characteristic culture.

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

Frowning tightly, Cai Xiaobai still couldn't answer, and asked Du Xinghe in a shy whisper: "Who?" ”

Du Xinghe shook his head, he didn't want to tell the two representatives of impressionist music, "Debussy" and "Ravel", because it was meaningless to say it, and Cai Xiaobai still didn't know.

took Cai Xiaobai's score, Du Xinghe drew eight empty notes on the staff, 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 G and minor." ”

=－=－=－=－=－=－=－=－=－=

[Thank you for the reward from "Mu Ci"! 】

[Explain a question about the Wolf of Glory.] I am writing this novel with deep feelings, and the protagonist's guilt for his parents is really a pain in his heart. The more I wrote, the more I realized that the protagonist was not happy, so I had to help him adjust it. The Wolf of Huaguang is not schizophrenic of the protagonist, and when it is appropriate in the future, the Wolf of Huaguang will wear back into the protagonist's body to make up for the scars on the protagonist's heart. After that, the protagonist can live a truly happy life, and I will also write it to be truly happy. Another thing to say, this book will be strongly promoted next week and will be on the shelves on February 1st, I hope everyone will support it then. 】