I think techniques because usually things that arent a locomotion
Alliteration is when two or more words have the same beginning sound. In the poem there are three examples:
1) Though...thy...thou
2) crest...craven
3) shorn...shaven
Alliteration gives the text a more unified rhythm, in a way I guess. It makes the piece sound more together.
Hope this helps!
Okay but what do u need to know I will anwser it if I am informed