What is the rhyme scheme?I'm so confused on what this even means?

Answer:
The ordered pattern of rhymes at the ends of the lines of a poem or verse.
Explanation:
It is the structure of end words of a verse or line that a poet needs to create when writing a poem. A pattern of sounds, it repeats at the end of a line or stanza.
Answer: This is an AABBC rhyme scheme
Explanation: An AABBC Rhyme scheme rhymes uses sections of four lines divided into two pairs. Notice how the first two lines rhyme: "sung my song" and "still grown strong" and the second two lines rhyme: "you've treed me" "but freed me" and the last line doesn't have another line to rhyme with so it is called C.
Hope this helps, have a nice day :)