I haven t figured out what a key is

No, there are not only 1234567 but also 7 in C key, which is also 1 flat 2 flat 3 flat 4 flat 5 flat 6 flat 7, but C major is just 1 as 1 and 2 as 2, there is no ascending symbol, but for example, in G major, it also has 1234567 and 1....All the way up to 7, (including .. dropsUntil 7 flats), but G needs to rise by a 4, so reading music is not 1 as 1, this is to be analyzed in a specific way, different key signatures are different, like E is the need to fall, but no matter what key is included in all tones, but it gives you the feeling that there are high key signatures and low key signatures, this is because their starting notes in the same octave are different, understand.

The four flats on the staff are the key signatures of BA major (or F minor). The scale and left and right fingering of BA major are shown in the figure below

ba key signature. <>

Fingering of ba on the keyboard.

This piece of music is in the key of the seven-tone Qingle be, which belongs to the BA palace system.

1: The key is the pitch position of the key, and the name of the key is composed of two parts, that is, the mark of the main tone and the mark of the key, e.g.: the major key with C as the main tone is called C major; Two:

Many tones connected together according to a certain relationship (generally no more than 7). A system with a tone as the center (the main tone) is called a key: three:

The quality of the key (including the height of the lead tone and the type of key) itself is called tonality. Authoritative note.

Mode, that is, the style of the key, such as the "major" of C major, the structure of the scale is constant and the position of the scale is variable, so the key is also equivalent to the structure of the scale.

Tonality is the nature of the tonality, such as the "C" in C major, the position of the scale is constant and the structure of the scale is variable, so the tonality is also equivalent to the position of the scale.

The key is the sum of the two, such as "C major".

Tonality: The pitch position of the dominant note in the tonal scale.

Modulation: Several tones are arranged together according to a certain relationship, and one of them has a central tone, which forms a key.

Tonality: The quality of a key (including the height of the lead tone and the type of key) itself is called tonality. That is: key + key = tonality.

If the dominant note is A, it is called A, and if the dominant tone is B, it is called B, and so on.

The main note is the initial note, the first tone, and the cdefgab represent the seven notes of 1234567, while the C key with C as the main tone is the 1234567, and the G key with G as the main tone is 2345671.

The so-called tone control is to artificially change the proportion of high and low frequency components in the signal to meet the listener's preferences, render a certain atmosphere, achieve a certain effect, or compensate for the lack of sound in the speaker system and the sound playback place.

This control process does not actually change the pitch (frequency) of the various sounds in the program, the so-called "pitch control" is just a customary name, in fact, "high and low pitch control" or "pitch adjustment". Hi-fi amplifiers are mostly equipped with tone controllers. However, in order to ensure the quality of signal transmission, tone control is not necessary.

**Term. In general, music is composed of a number of basic sounds, and the sequence of sounds composed of these basic sounds is called "key".

The seven-tone pattern with the five tones as the backbone - a form of the Chinese folk seven-tone tone. It is formed by adding different partial tones between the minor thirds of the five tones, that is, adding "change palace" (the low semitone of the palace) or "clear feather" (the high semitone of the feather, also known as leap) between the basic scale feather and the palace; Add "variation" (the low semitone of the sign) or "clear angle" (the high semitone of the horn) between the corners of the basic scale.

In addition to the seven-tone mode with the five tones as the backbone, there are also seven natural tones that are all seven-tone tones of the basic level. Although this key is the same as the tone of the European medieval church, the pillar tone of the key has its own rules.

In addition, there are seven-tone modes with neutral tones, such as the sign mode of the bitter tone of the Qin cavity, which uses 3 4 tones (neutral tones) between two minor thirds, so that the color of the key is completely different from other sign modes.

Introduction to Debugging:

1. A number of musical notes that make up a piece of music are combined together according to a certain relationship, and one of them is the main tone, and the rest of the notes tend to it, and this system is called a key.

2. Modulation is a form of musical organization and structure created by human beings in long-term practice. Usually, when the concept of modulation is explained, the central note of the key is often taken as the starting point and the end point, and the other tones are arranged in order of pitch into the form of a scale, which is called a key scale.

3. In different historical periods and different nationalities and regions, a variety of different tones have been formed. Each key has its own characteristics and expressiveness due to its scale structure, the relationship between the key scales, and the rhythm. The combination of modulation and other expressive techniques can give ** a certain quality of expression and different styles.

Many notes (usually no more than seven) are grouped together, with one note as the center (the dominant tone) and the rest of the notes moving around the main tone, which we call a system. (For details, please refer to the relevant chapters of "** Theoretical Foundation" written by Mr. Li Chongguang).