Music is important factor for many cases such as monitiring child developement,to treate depression(with Enya Music),advertisement etc.
IT IS USED IN RELIGIOUS AND NON RELIGIOUS CEREMONIES , it is a profession for some people , it is the easiest way to memorize things and it is also a mean of relaxation
in can make you calm down, it can make you get over a relationship and it can make you less stressful! music is great
it would suck if there is no music and dances