Ghettotech (also known as Detroit club music) is a genre of electronic music originating from Detroit. It combines elements of Chicago's ghetto house with electro, Detroit techno, Miami bass and UK garage. It features four-on-the-floor rhythms and is usually faster than most other dance music genres, at roughly 145 to 160 BPM. As with ghetto house, vocals are often repititive and sometimes pornographic. As DJ Godfather puts it, "the beats are really gritty, really raw, nothing polished." Ghettotech was an integral part of the Detroit Electronic Music Festival, an annual event.