Music relaxes the spirit and soothes the soul. It matters not if there are vocals, or just purely instrumentals. Music is the language that the heart knows. Like anything in the arts & entertainment realm, this is a topic that can be classified as “to each his own”. What is loud for one may simply be deemed as normal as far as another is concerned.
Music is an integral part of the arts & entertainment simply because it is universal. Making music is an art and the finished product entertains the listener to no end. Have you even been very sad and when you heard a certain song, you began to cry? You cried with that song because it spoke to your heart. It understood the heaviness of your emotions. It became “your” song.
It is not only a part of the arts & entertainment but music is an inseparable part of a person’s life and his culture. Even if music is subjective, meaning different people in different social status may like different kinds of music but still it is music as far as their ears are concerned. However you may want to define what music is, one thing is sure, music is universal and we react to it the way our hearts tell us to.