My best answer would be that out brain makes connections. Music can make a conection to what ever we're seeing/feeling in the moment. That's why certain songs might make us sad or happy, or any other emotion. Music can also help you concentrate, depending on the person.
There is nothing god can not see but we can.
When a reader makes inferences based on details provided, it enables the read to comprehend the text that they are reading. Inferences are conclusions under the basis of reasoning and evidences. It gives a summary of what is being read. In that way, it helps other people to easily understand what is being read.