The note and its two forms of expression
First, let’s start with the basics, namely the seven basic notes 1234567, also transliterated as do, re, mi, fa, sol, la, xi, which everyone knows (though if this is not known then I can’t do anything about it).
In fact, this is only one of the expressions of the note, which we call chanting, which is a more verbal form, used mostly for singing, but there is another form of expression of the note: chanting.
The sound names are derived from the letters of the alphabet, and there are also seven, for CDEFGAB, corresponding to 1234567. here is a very The interesting phenomenon is that AB, which should have been in the top two, has instead been relegated to the bottom of the chandelier.
The reason is simple: this music theory comes from the West, and the study of Western music theory is dominated by minor keys (i.e. (6712345), Westerners then adopted the first seven of the twenty-six English letters corresponding to the minor key, so ABCDEFG The theory was then transferred to China, where the Chinese people’s thinking was more suited to a major key, and here we are today. .
Sound names and choral names are two sides of the same coin, sound names are more written, choral names are more spoken, and they are also an important bridge between the thinking of the first key and the thinking of the fixed key (this will be discussed later when we explain the key).
In fact, this is just a form of expression, and there is no need to stick to sequences or rules.
The physical properties of sound
There are four physical properties of sound: pitch, volume, time, and timbre.
1, pitch, that is, the height of the sound, the physical performance mainly lies in the number of vibrations per second, in hertz (Hz), such as 440Hz is the meaning of 440 times per second vibration (the physical acoustics involved here in the back of electronic music production also help Oh)!
Many people are confused about the difference between pitch and volume. To put it simply, you press a note A heavily in the lower register of the piano, and gently press a second note B in the upper register of the piano. Large, but the pitch is B high, this point to focus on the distinction.
2, volume, that is, the loudness of the sound. Physical performance mainly lies in the size of the vibration amplitude, in decibels. For example, the sound of the car horn is a high-decibel sound, and the sound of the paper falling to the ground in the dead of night is very light.
3, time, i.e. the length of the sound, which is well understood, 1 second sound and 3 seconds sound, the time is not the same.
4, Tone, which is still well understood, simply put, men and women sound different, pianos and guitars sound different. Cars and alarms don’t sound the same. Everything in the world has its own unique sound.
Music and noise in music
In music theory, it refers to those sounds that have a “fixed vibrational frequency,” meaning a pitch that vibrates at the same frequency every second.
For example, if you press any key on a piano 10,000 times, it will always have the same pitch, no matter how long it takes. This is a musical note, with a fixed frequency.
The opposite concept is “noise”, which is defined in music theory, not in life. (a) The concept of “noise”. It refers to sounds that do not have a fixed frequency of vibration.
Noises that are common in music, such as percussion, like jazz drums, they strike a part of the music, but compared to instruments like pianos and guitars, you will find that they don’t have a precise pitch, and this, is noise.
Noise is an essential part of the music.
This article is purely on the spur of the moment, but I also hope to try to provide some reference for ordinary music lovers, and I also hope that the senior teachers can not stint to give advice if there are any errors in the article, please correct me, thank you.