Well the theme in general describes how life isn't easy, but you have to push on and not look back.
The mother is telling her child what life was like for her, and how it will be for him, so her advice is to not give up. She says to her son, "<span>I’se been a-climbin’ on" and "</span>So <span>boy, don’t you turn back.". Even though she claims that "</span>
<span>Life for me ain’t been no crystal stair", the theme of this short poem is to not give up to life's adversities. </span>
Do u have any options to pick from?
The beginning is the "set up" where the setting and characters are introduced.
Your question: <span>In hughes', "trumpet player," what does music do for the subject of the poem? i think it's</span> a Jazz poem