Nina Simone said: “You can't help it. An artist's duty, as far as I'm concerned, is to reflect the times.” How is that different than Louis Armstrong's approach to music and social justice issues of his time?

Because it is an outlet. most people are very shut off so they will write poetry to.. almost rant. sometimes people can’t say their feelings out loud so they make it into an art form that is poetry, and write it down.

Opposition of two melodic ideas is the  right answer