Citation:
Rhythm refers to the pattern of stressed and unstressed syllables in language. It creates a musical quality in writing and helps establish a flow and pace for the reader.
Meter is the specific pattern of stressed and unstressed syllables in a line of poetry.
Rhyme is the repetition of similar sounds at the end of words, adding musicality to poetry or lyrics.
Alliteration is the repetition of initial consonant sounds in neighboring words, creating a rhythmic effect.