Why might a poet change the meter in a poem from one line to the next

The answer is "To create a beat".

Explanation:

The author constantly changes its meter, and the highlighting various vowels into its multiple routes of something like poetry through helping to add harmony, pace, and musicianship to its poetry. The Meter would be the rhythm or structure that one poet uses on each line of their poetry. In the creation of rhythmic patterns, its writer uses various stressed and unstressed vowel sounds. A poet may change its meter in such a poem from one line to another to create the rhythm.