It is very difficult to tell what a person is really like without actually getting to know them. Even if you had met this person, it would only have been a small fraction of what that person is really like. You would, however, have successfully experienced how that person, when in the presence of the specific group of people you happened to be around, treats someone they have just met. To really tell what a person is like, you must get to know them.
That sort of reasoning is what compels me to experience all sorts of art; even when I have already set in my mind that a certain something is not my cup of tea. That sort of reasoning is what compels me to listen to more than ten seconds of a song before I skip on to the next thing or, worse yet, decide that I don’t like a band or artist without actually having heard/seen/experienced any of their work.
Music is easily the most accessible/available form of art. It has been around for as long as anyone knows. You hear it every day (whether intentionally or not). So, with that said, music is where we will begin.