Different poetic elements describe the repetition of sounds.

enjambment
consonance
repetition
alliteration

is heard when two or more words in a line or short section begin with the same sound.
enjambment
consonance
repetition
alliteration
describes when the same consonant sound appears anywhere in several words in a line or short section of a text.

enjambment

consonance
repetition
alliteration

enjambment is when a sentence or phrase continues from one line to the next without a punctuation break.
consonance is when the same consonant sound appears anywhere in several words in a line or short section of a text.
repetition is the use of the same word, phrase, or sound multiple times in a poem.
alliteration is when two or more words in a line or short section begin with the same sound.