Respuesta :
Answer:
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It sets a sad, mournful tone.
Explanation:
This is the main effect that the author's language has on the reader. By repeating the phrase "piano moan," the author highlights the fact that the poem conveys a sad, mournful tone. Moreover, the author emphasizes this by telling us that the music comes from the man's soul, and that the voice that sang had a melancholy tone.