For Eazy-E, the concept of gangsta rap was fully formed in his mind.
By 1986, the genre, which nobody then called "gangsta rap" ("reality rap," please) had begun to sprout in L.A. by way of Ice-T's "6 'n the Mornin'," which was patterned after Philadelphia rapper Schoolly D's "P.S.K. What Does It Mean?" But there was no gangsta-rap label, and certainly no gangsta-rap genre.
Eazy-E was an unlikely progenitor. "I didn't know he rapped," remembers MC Ren, his future bandmate in N.W.A. "Ain't nobody know."