What figure of speech uses repetition a specific consonant sound at the beginning words or syllables and nbspto create certain sound?

The figure of speech that uses repetition of a specific consonant sound at the beginning of words or syllables to create a certain sound is called alliteration.

For example:

* She sells seashells by the seashore.

* Peter picked a peck of pickled peppers.

Alliteration creates a pleasing, musical effect and can also emphasize certain words or ideas.