Thus, life without music, to me, is just like movies without background music. Everything seems pointless and dull.
I like this part! Very clever...
However, I think sometimes this movie can be its own background music.
This is a great essay! I want to mention that it is a flowing, digressing essay. It is not an essay with good structure.
In school, it is usually best to write an essay with good structure. However, classical essays are often more like yours.
IF you want to write an essay with good structure, give a sentence at the end of the first paragraph that expresses the main idea of the essay.