How did listening to the excerpt from "dover beach" enhance your understanding of the sense of sadness explored in the poem?

The poet uses aural imagery to create the sound of the sea. The repetition of the r sound in the words "grating roar" imitates the sound that the poet describes. The poet also uses alliteration, which gives the poem cadence and musicality: “Lay like the folds of a bright girdle furled.” The repetition of vowel sounds and the f sound add rhythm to the poem.

Arnold also uses repetition to give the poem a mournful tone:

Begin, and cease, and then again begin,  

With tremulous cadence slow, and bring

The eternal note of sadness in.

Repeating the words begin and cease creates a monotonous rhythm, and the rhyme in these lines gives the poem a sorrowful feel.

both the address and the poster use diction to convey their message. diction is defined as a style of writing or speaking based on the types of words chosen in order to send a message. parallelism is when a similar sentence structure is used for several sentences on a text; roosevelt's address doesn't follow that. repetition has to do with repeating a word or sentence in order to emphasize and idea, however neither the poster nor the address use repetion. finally, the address doesn't use images to convey a message.