With the continuous improvement of our people's living standards, music has become an indispensable and important part of people's lives. Xian Xinghai, a famous Chinese musician, once said: Music is the greatest happiness in life, music is a clear spring in life, and music is a melting pot that cultivates one's temperament.

The role of music in modern life is immeasurable. Music can relieve tension and monotonous life, relax people's nerves, and be beneficial to physical health. Music can please people's hearing, purify people's souls, and give people a high degree of spiritual enjoyment. Music can also help you get rid of sorrow and sadness, and free you from pain. In medicine, music is also used to assist in the treatment of diseases, which can achieve effects that drugs cannot.

Using music to beautify the environment is also a new trend in environmental protection in the world. People closely connect music with their living environment and use music to create a high-quality environment. Musical furniture, stationery, toys, appliances, etc. have entered thousands of households.

Music is also used to offset noise and improve the environment. The modernization of life also brings various noises, which pollute the environment. Sounds like the roar of machines and car horns make people feel very irritated. Some experts have conducted research on the topic of sound control. For example, Japan has developed a music-to-noise shielding device. The principle is to match the corresponding music according to the intensity of the noise, and overlap the peaks of the music with the valleys of the noise to offset the noise.