What role does rhyme play in poetry. Does poetry need to rhyme?

How does meter affect the tone of poetic verse?

What is mimesis, and how is it used in poetry?

How is the structure of English verse based on the ancient forms of Greek and Latin verse? How are they different?

Hollander says formal structure is required of poetry but that it is not the only requirement. What does he mean?

How are repetition and variation important in writing poetry? What purpose can they serve?

How is poetry like music? What makes it different?