The poetic device that is used by the poet when he repeats the -ll sound is referred to as;
Alliteration is a poetic device that involves the repetition of the initial consonant sounds in a group of closely related words. The -ll sound is a consonant.
So, when the poet uses it repeatedly in a group of nearby words and sentences, he is applying alliteration.
Alliteration is important because it adds rhythm to a poem. It also improves memorization since it involves words that sound alike.
Conclusively, the device used by the poet in the above instance is alliteration.
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