Consonance is a form of rhyme involving the repetition of identical or similar consonants in neighboring words whose vowel sounds are different (e.g., coming home, hot foot).
Alliteration is usually distinguished from other types of consonance in poetic analysis and has different uses and effects.
An example is the verse from Edgar Allan Poe's "The Raven": "And the silken sad uncertain rustling of each purple curtain."
Consonance is an element of half-rhyme poetic format, sometimes called "slant rhyme".
It is common in hip-hop music, as for example in the song Zealots by the Fugees: "Rap rejects my tape deck, ejects projectile/Whether Jew or gentile I rank top percentile."