Depicting the scene onstage illustrates the horror of the murders. Witnessing the murders makes them very real and extinguishes any empathy for Macbeth's character. The act exposes who the man has become.
The speaker's tone in "Harlem" is best described as frustrated.
The poem's imagery helps to convey this tone. In discussing a deferred dream, Hughes describes a dried up raisin in the sun; a festering sore; stinking, rotting meat; and a sagging, heavy load. At the end of the poem, he wonders if the deferred dream just explodes.
This imagery helps provide the key to understanding the speaker's attitude, or tone, about his subject, the deferred dream. He is frustrated that these dreams are wasted.
A, the fate of prisoners.
