The melody beauty of vocal music includes the ability to express emotions, the musicality of vocal music, and the diversity of music.

1. Emotional expression ability

Emotion is a person’s experience of objective and realistic attitudes. It reflects a certain relationship between objective things and individual subjectivity. There are two main types of emotions: one is the emotional experience directly felt from life; the other is the emotional experience indirectly received and felt from other channels such as works of art, which is called "aesthetic emotion". In vocal singing we rely more on aesthetic emotions.

If the singer does not have a realistic experience of this kind of emotion in life, in this case, the singer needs to rely on obtaining emotional aesthetic experience from other works of art or through other channels to infect. himself, and express this emotion through vocal music, turning it into his own emotional experience when singing.

2. The musicality of vocal music

Vocal music refers to the form of music sung with the human voice. Vocal music is a pleasant, continuous and rhythmic sound that is mainly produced by the human vocal cords, working with the mouth, tongue, and nasal cavity to act on the breath. According to the difference in pitch range and timbre, it can be divided into soprano, mezzo-soprano, alto and tenor, baritone and bass. The range of each human voice is approximately two octaves.

As for the three singing methods: bel canto, ethnic singing, and popular singing, because the singing modes are different, the styles will be different. Specifically, the main reason why the three singing methods have great differences in style performance is because the three singing methods use different principles of singing and vocalization.

3. Diversity of music

The same piece of music or song, performed by bands and singers from different regions, or played with different instrumental music, will often produce different effects. The effect gives the listener completely different feelings. This is the diversity of music.

Take the familiar "Red Sorghum" episode "Jiu'er". Different singers have different singing styles and give people different feelings. Some are poignant, some tragic, and some euphemistic. . Playing "Jiu'er" with Banhu and Suona also produces different effects. Banhu makes people feel helpless and depressed; Suona makes people feel like a cry of despair.