Freestyle is a style of improvisation with or without instrumental beats, in which lyrics are recited with no particular subject or structure It is similar to other improvisational music, such as jazz, where a lead instrumentalist acts as an improviser with a supporting band providing a beat. Improv/freestyles are improvised in this way.
In the book How to Rap, Big Daddy Kane and Myka 9 note that originally a freestyle was a spit on no particular subject – Big Daddy Kane said, "in the ’80s when we said we wrote a freestyle rap, that meant that it was a rhyme that you wrote that was free of style... it's basically a rhyme just bragging about yourself." Myka 9 adds, "back in the day freestyle was bust[ing] a rhyme about any random thing, and it was not a written rhyme or something memorized". Divine Styler says: "in the school I come from, freestyling was a non-conceptual written rhyme... and now they call freestyling off the top of the head, so the era I come from it's a lot different". Kool Moe Dee also refers to this earlier definition in his book, There's A God On The Mic:
There are two types of freestyle. There's an old-school freestyle that's basically rhymes that you've written that may not have anything to do with any subject or that goes all over the place. Then there's freestyle where you come off the top of the head.
In old school hip-hop, Kool Moe Dee claimed that improvisational rapping was instead called "coming off the top of the head", and Big Daddy Kane stated, "off-the-top-of-the-head [rapping], we just called that "off the dome" — when you don't write it and [you] say whatever comes to mind".
Referring to this earlier definition (a written rhyme on non-specific subject matter) Big Daddy Kane stated, "that's really what a freestyle is" and Kool Moe Dee refers to it as "true" freestyle, and "the real old-school freestyle". Kool Moe Dee suggests that Kool G Rap's track 'Men At Work' is an "excellent example" of "true" freestyle, along with Rakim's "Lyrics of Fury".
Since the early 1990s onwards, with the popularization of improvisational rapping from groups/artists such as Freestyle Fellowship through to Eminem's 8 Mile, "freestyle" has come to be the widely used term for rap lyrics which are improvised on the spot. This type of freestyle is the focus of Kevin Fitzgerald's documentary, Freestyle: The Art of Rhyme, where the term is used throughout by numerous artists to mean improvisational rapping.
Kool Moe Dee suggests the change in how the term is used happened somewhere in the mid to late 1980s, saying, "until 1986, all freestyles were written," and "before the 1990s it was about how hard you could come with a written rhyme with no particular subject matter and no real purpose other than showing your lyrical prowess."
Myka 9 explains that Freestyle Fellowship helped redefine the term – "that's what they say I helped do - I helped get the world to freestyle, me and the Freestyle Fellowship, by inventing the Freestyle Fellowship and by redefining what freestyle is... We have redefined what freestyle is by saying that it's improvisational rap like a jazz solo".
Although this kind of freestyling is very well respected today, Kool Moe Dee states that this was not the case previously:
A lot of the old-school artists didn't even respect what's being called freestyle now... any emcee coming off the top of the head wasn't really respected. The sentiment was emcees only did that if they couldn't write. The coming off the top of the head rhymer had a built-in excuse to not be critiqued as hard.
Many rappers learn to rap through improvised freestyling, and by making freestyling into a conversation or a rhyming game which they play frequently as a way to practice, as described in the book How to Rap. Reasons for freestyling include entertainment, as a therapeutic activity, to discover different ways of rapping, promoting oneself, increasing versatility, or as a spiritual activity. Improvised freestyling can also be used in live performances, to do things such as giving something extra to the crowd and to cover up mistakes. In order to prove that a freestyle is being made up on the spot (as opposed to something pre-written or memorized), rappers will often refer to places and objects in their immediate setting, or will take suggestions on what to rhyme about.
Freestyles are performed a cappella, over beatboxing (as seen in Freestyle), or over instrumental versions of songs. Freestyling is often done in a group setting called a "cypher" (or "cipher") or as part of a "freestyle battle". Due to the improvised nature of freestyle, meter and rhythm are usually more relaxed than in conventional rapping. Many artists base their freestyle on their current situation or mental state, but have a ready supply of prepared lyrics and rhyme patterns they can use as filler. Freestyling can also be used as a songwriting method for albums or mixtapes.
In a freestyle battle, each competitor's goal is to "diss" their opponent through clever lyrics and wordplay, with heavy emphasis being placed upon the rapper's improvisational ability. Many battles also include metaphorically violent imagery, complementing the "battling" atmosphere. It is considered dishonorable or shameful to recite pre-written or memorized raps during a freestyle battle, because it shows the rapper to be incapable of "spitting" spur-of-the-moment lyrics. A live audience is key, as a large part of "winning" a battle is how an audience responds to each rapper. Appointed judges may be used in formal contests, but in most cases the rapper who receives the largest audience response is viewed as the victor.
In modern times, with the rise of leagues such as King of the Dot and Ultimate Rap League, most battles are written with some freestyling incorporated into the verses. This allows for more intricate rhymes and insults.
The idea of such poetic battles has a long history that can be found in genres of poetry such as Haikai and flyting. As hip-hop evolved in the early 1980s, many rappers gained their fame through freestyle battles. Battles can take place anywhere: informally on street corners, on stage at a concert, at a school, or at event specifically meant for battling (such as Scribble Jam or the Blaze Battle).
A cypher or cipher is an informal gathering of rappers, beatboxers, and/or break-dancers in a circle, in order to jam musically together. The term has also in recent years come to mean the crowd which forms around freestyle battles, consisting of spectators and onlookers. This group serves partly to encourage competition and partly to enhance the communal aspect of rap battles. The cipher is known for "making or breaking reputations in the hip hop community; if you are able to step into the cipher and tell your story, demonstrating your uniqueness, you might be more accepted". These groups also serve as a way for messages about hip hop styles and knowledge to be spread, through word-of-mouth and encouraging trends in other battles.
"Professor Ferenc Szasz argued that so-called rap battles, where two or more performers trade elaborate insults, derive from the ancient Caledonian art of "flyting". According to the theory, Scottish slave owners took the tradition with them to the United States, where it was adopted and developed by slaves, emerging many years later as rap.