Why can music affect people's mood? Seek scientific basis.

Music is a symbol, a sound symbol, which expresses people's thoughts. It is one of the carriers of people's thoughts. Music has a purpose and connotation, which implies the author's life experience and thoughts and feelings. From the sound wave analysis, music is between noise and pure tone with constant frequency. From the effect, it can bring people the enjoyment of beauty and express people's feelings.

Music is a form of social behavior, through which people can exchange their feelings and life experiences with each other. This is the most prominent role in the song.

Music therapy is used to relieve or eliminate the pain of patients. /kloc-at the end of 0/9 century, some hospitals and universities in the United States began to study the application of music as a means of treating diseases. After the 1940s and 1950s, Germany, France, Britain, Australia, Sweden, Denmark and Japan began to study and practice treating diseases with music.

Because of the remarkable effect of music therapy and its popularity, many countries have further established many music therapy majors and national associations or societies to carry out this activity. 1972 and 1983 held international academic exchange conferences on music therapy. Medical circles and musicians in our country began to notice that music therapy developed late in the world, and some hospitals also started research activities in this field. For example, Anding Hospital, a psychiatric specialist in Beijing, Mawangdui Sanatorium in Changsha, Hunan, and shenyang military area command 202 Hospital. Music therapy has attracted the attention of Chinese Medical Association and started to organize related activities in this field. Starting with prenatal education, the Institute of Audio-visual Publishing House has recorded and popularized some excellent educational music such as prenatal education music, children's lullabies and Spring Buds, which are deeply loved by people.

In fact, there are many historical experiences in using music to treat diseases at all times and in all countries. In ancient China, Egypt, Arabia, Greece and Rome, scholars or medical scientists have discussed the truth and experience of music therapy. For example, Huangdi Neijing and Jingui Yanzhen put five tones (palace, business, horn, sign and feather, namely: 1, 2, 3, 5, 6) and five internal organs (spleen, lung, liver, heart and kidney) and five senses (thinking, worry and anger) Confucius. They listen to music or play music by themselves after work, which plays an excellent role in regulating their body and mind.

Many modern scientists have studied the relationship between music and psychology and physiology. For example, H, M and Suttermelster (1951) found that major music can cause pulse and increase breathing, while minor music can slow it down. H, Weihs( 1954) pointed out that music with beautiful melody and not very strong tone can make the parasympathetic nerve into a dominant state, while music with strong tone and violent melody fluctuation makes the sympathetic nervous system in a dominant position. American medical scientists have done an experiment, that is, conducted EEG and ECG tests on band members engaged in jazz and rock music, and found that this kind of music is harmful to people's physical and mental health, with arrhythmia and abnormal EEG accounting for more than 93%; The orchestra members who play classical music use the same method to test, but the results are completely opposite to the former. They are not sick, but healthier than the average person, with a health rate of over 95%.

At present, some big hospitals and medical universities in Europe, America and Japan have carried out music therapy in operating rooms, delivery rooms, wards and rehabilitation centers to alleviate patients' anxiety and pain. Some dentists in Sweden and Britain use music instead of anesthesia, while doctors in Japan use music to promote mother's milk secretion, which can increase by about 20%. Some scientists even use music to improve the milk yield of cows and promote the growth of fruits and vegetables, which proves that the peculiar function of music can be extended to the production activities of animals and plants.

The rhythmic call of human beings in labor, the love and singing of both sexes, the narration and venting of excitement in life, and the fantasy prayer of yearning for the heart of appeal are the essential contents of the origin and reflection of music. It is an audio expression of people's psychological and physiological changes, which in turn can act on psychological and physiological changes. According to the vibration theory in music therapy, the basic element of music-the beat, echoes the heartbeat rhythm of people. Melody is like the ups and downs of nerve excitement and inhibition, especially the coordinated movement of internal organs of the body. The timbre is very similar to people's temperament and personality.

Therefore, it naturally becomes the best coordinator of human physiology. The human body and the environment are always a unity. Without sound, light, color, taste, cold and heat, radiation and other natural environmental elements, it is impossible for the human body to exist and live in isolation. People's physiology and psychology always respond to sound-noise and music. Noise is harmful to health, while music is good for health. If the selected music is correct and appropriate, it may play a role in regulating the physical and mental pathological state of the body and promoting the healthy development of the body.

Using music to treat diseases is both simple and complicated. Simplicity means that beautiful music is often easily loved by people. Even if they don't know much about music, beautiful music or melody is naturally intoxicating, just as beautiful colors or images are naturally loved by people. This is the expression of human aesthetic understanding. Therefore, generally speaking, playing well-known beautiful music can play a very good role in the physical and mental health of healthy people or patients. But the problem is not that simple. Every patient who receives music therapy has a different situation.

People are divided into men, women and children, with different ideological and cultural levels, different ethnic life in different regions, different professional interests and hobbies, different temperament and personality health, different mental illness status, and more uneven music literacy. How can they have exactly the same reaction or hobby to music? Every patient's condition is different, and there must be extremely complicated individual selectivity, which is another special performance of aesthetic comprehension.

The layout of music

Compared with vision, human hearing is much slower, and the accuracy of sound frequency analysis by hearing is related to the duration of sound. The longer the time, the higher the accuracy of the analysis, and vice versa. The complex sound with irregular and rapid changes sounds like a chaotic effect to most people, and it is impossible to enjoy any aesthetic feeling. Therefore, arranger should learn to be organized and hierarchical in the overall handling of music.

The structural layout of music has its regularity. The view that China's traditional music "connects the preceding with the following" can be regarded as a concise and profound summary of the rules of music structure.

Although the actual situation of song melody may vary widely, and the long and short structures may also be different, we should pay attention to the following essentials of structural layout when arranging music:

The beginning of any song (except the quotation), as the basic statement (presentation) of music, is just like talking. In most cases, it always gets to the point quickly and makes people understand what you are going to say. Accompaniment usually uses a positive triad (I, IV, V or V7) to clarify the tonality; And most of them are done on remakes, emphasizing the stress of bars to make the beat clear. In order to make the audience hear the melody clearly, at the beginning, most of them use simple and clear harmony words to set off the melody. If auxiliary triads and variable chords are widely used from the beginning, not only can the purpose of enriching colors be achieved, but the tonality may be blurred and the role of the host may be usurped.