Sometimes it's because I listened to a kind of music when I experienced something impressive before, so every time I hear this music later, I will think of the original time, so music is very evocative. Music is actually alive, and all the notes can be connected together to form a melody. The songs in major are cheerful and clear; The songs in minor are gloomy and beautiful, and there are five tones in our country, which can make people feel without hesitation. This is our music in China. Therefore, no matter what tune of music can infect people, music is not just a sound. Different intervals (two sounds are called intervals) can produce different effects. For example, the third major reminds people of the sun, the third minor reminds people of the moon, and the second minor harmonic interval is harsh and gives people a sense of uneasiness, but the second minor melody tone has a faint sadness. Therefore, music is not just a sound, but a sound with life and excellent appeal.