Miami bass (also known as booty music, a term that may also inclue other genres, such as dirty rap), is a type of hip hop music that became popular in the 1980s and 1990s. It is known for applying the Roland TR-808 sustained kick drum, slightly higher dance tempos, and occasionally sexually explicit lyrical content. Music author Richie Unterberger has characterized Miami bass as using rhythms with a "stop start flavor" and "hissy" cymbals with lyrics that "reflected the language of the streets, particularly Miami's black ghettos such as Liberty City and Overtown" . Miami bass has never found consistent mainstream acceptance, though it has had a profound impact on the development of drum and bass, Baltimore Club, Southern rap, funk carioca, and other genres.