The term 'freestyles, perhaps' can be solved by the four-letter word 'raps'. Rapping is a form of vocal delivery that incorporates rhyme, rhythmic speech, and street vernacular, which is performed or chanted in a variety of ways. Freestyling is a type of rapping that is performed without preparation or pre-written lyrics. It is often used in hip-hop battles and cyphers, where rappers improvise their lyrics in response to other performers.