FREESTYLE RAP

Freestyle rap during hip-hop's old school had a different definition from the definition it has today - Kool Moe Dee 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 says that improvisational rapping was instead called “coming off the top of the head”,and he refers to this as “the real old-school freestyle”. This is in contrast to the more recent definition defining freestyle rap as "improvisational rap like a jazz solo".

http://www.youtube.com/watch?v=agnKPLrG2E0