what makes a good music?

first i believe every music comes with a message, either positive or negative. But before i go forward, i want to ask a question, is their a standard way of measuring what is right and wrong that is well accepted by world? Because the same things might mean different things to so many people may because of difference in believes, culture, religion, ideas or environment . I know you might be wondering why this choice of picture? but the main reason for using this picture is because i am a boy from Africa and these are symbols that represent music in this part of the world. This second image is very common to a boy in America or Europe when it comes to music but it is strange to a boy in Africa . On this note you begin to see reasons with me that what seems like good music to a boy in Africa might be different from what a boy in America knows as good music. i conclude by saying the answer to the question of what makes a good music, is a dependent one.