How to judge the tune of a song?

Music has at least 30 tones, and the seven names C, D, E, F, G, A and B each have a major and a minor.

#C(# is a semitone, pronounced C), #D, #F, #G, #A and #B each have twelve A major. BD(b is a flat tone, pronounced D)bE, bG, bA and bB each have a pair of major and minor tones.

The above is the western model, but the China model is different. China mode is based on the national five-tone mode, that is to say, the most basic five tones are "Gong, Shang, Jiao, Zhi (the word is not in the computer font) and Yu", and there are many developed tones according to them.

For ordinary songs (excluding some special songs that subvert the tradition):

1, the ending is often modal, and the tonic is the I-level tone of modality. If it's a major, I-level sound is do, and if it's a minor, I-level sound is la.

2. If you don't end up with a stable tonic, you can also carefully taste the stable core tone that often appears in a piece of music, often the modal tonic.

3. In major, the emotional color of songs is bright and sunny, while in minor, it is opposite, dark, sad and depressed. ?

4, on the premise of finding the tonic, if you are not sure whether it is a major or a minor. You can try the following methods:

Determine the tonic and hum two notes three degrees higher and three degrees lower than the tonic. (The third major tone is two whole tones, that is, four semitones; A minor is three semitones. In most cases, only one of these two sounds will appear in music. Look for it in music. If there is a third level, it is a major. On the contrary, it is a minor.

Extended data:

Song classification:

The scientific degree of song classification is one of the symbols of a country's music level, and relevant parties should attach importance to it and formulate an authoritative classification standard for use in music circulation.

1, folk songs-all popular folk songs, the author is generally anonymous, the lyrics are popular, and people are singing about things they care about or around. If it reflects the situation of the times, it will often die out on its own. The ancient rulers of China often sent people to collect folk songs and understand people's feelings. The ancient literature "The Book of Songs" contains a large number of folk songs at that time.

2. Art songs-generally created by musicians, the lyrics are mostly poems by famous poets, and musicians compose music to accompany them. Since19th century, many western songs and operas have been made in this way. There are also music scores of popular folk songs, and poets sing lyrics according to the music scores, such as those of the Song Dynasty.

3. Modern songs-Modern songs are written by the lyricist and songwriter. Sometimes it is written to a specific actor according to the singing style and ability, and sometimes it is written to the public to popularize songs. Modern songs are more popular, and ordinary people can sing without professional actors, but their popularity life is shorter.

Baidu encyclopedia-tune