Function is an mathematical term that indicates the relationship of one variable with another variable. You may find different phenomenon that is correlated with each other. The households income is correlated with how costly food they will consume. Eating fast food may be related with the income level of the individual people. But how much calories per day he required is not correlated with the income level.
Your high income may lead you to buy and high priced shoe. But it will not lead you to by an Big sizes shoe. That means the size of your show is not correlated with your income level. Your income level may lead you to buy good food. Price of food is correlated with income level, but it never correlated with the amount of required calories. The required calories may depends on your weight and height. To surviving with Big sizes body there need more calories. It is the natural Law of biology.
Music and dance correlation
Music and dance is correlated with each other. It exactly depends on the wavelength of the sound. The more rhythm of sound have more impact on body movement. This relationship is biological, chemical and psychological. Scientists have found music have a role In secretion of dopamine. Specially, music releases endorphin which is dopamine class neurochemicals that is responsible for pleasure and pain. This is also note that endorphin also an active chemicals of most of the addictive substance. For this cause most of the physiologists called music as a mild class of addiction. How much of endorphin will secrets that is somewhat dependable with with the pattern of music.
The frequencies of endorphin secretion into body determines how the body will move with respects to musical rhythm. The rhythm of body that we may termed as dance have a significant correlation with musical rhythm.
Not each music can produce dance similarly to each people. Even not every class of people will get same pleasure with response to same song and music. You may see with wonder that a specific kinds of music is stimulating diverse age range of people in diverse way. The song which is delighting very aggressively to the young is failed to delighting to the elder people. Again the types of song and music how wonder delighting to elder people are not creating same influence to the younger people.
Some of the case this kinds of variation of delighting and enjoyment is differ in gender to gender. Female audience are prone to a specific types of sound wavelength that may not similar popular to the male audience. So a good musician should have to take a consideration of this variability of fans of music age to age and gender to gender. Otherwise the production of music may go to dust. A good musician obviously a good sales people, because he knows better how wavelength of tune should produce in order to satisfying the diverse culture of audience.
Just think why elder people likes specific types of music? It can be explain with physiology and medical term. In most of the case the song and music that is very popular to elder people can not produce dance or body movement of audience.
