I didn't mean "mumbling" to point out any kind of sub-genre, just what this "music" entails. Mumbling or fast talking/reciting profanities and edgy stuff using the vocabulary of 16teen year old on the background of automated computer generated rhythm section. I'm pretty sure i've explored more musical cultures, including contemporary black music, than you. Try listening to jazz, blues, soul, funk and hell, even some 70s disco, for a change. Rap will always be a subculture gangsta scum shit. There's nothing that could redeem it. It's "music" for people, who are too lazy/dumb to actually go to school and learn it.