Read the excerpt from "the weary blues." he made that poor piano moan with melody. o blues! swaying to and fro on his rickety stool he played that sad raggy tune like a musical fool. sweet blues! coming from a black man's soul. o blues! the phrases "o blues! " and "sweet blues! " are examples of alliteration. repetition. hyperbole. simile.

The right answer is the B) repetition.

Explanation: Just to elaborate a little on the answer, it can be added that repetition is a very versatile literary device that repeats the same letters, words, sounds, phrases, and even ideas in order to produce more emphasis, clarification and an emotional response from the audience. By repeating the phrases "O Blues!" and "Sweet Blues!" the poet places emphasis on the word "Blues," and the reader is somehow invited to listen to, or at least to recreate in his or her mind, the moaning and sad melody that came out of the "poor piano."