Extremely significant for 1991's Breaking Atoms alone, Main Source's effect on hip-hop is nearly impossible to gauge, especially when considering Large Professor and K-Cut's contributions outside of the group. Consisting of MC/producer Large Professor (born Paul Mitchell) and twin DJs/producers K-Cut (born Kevin McKenzie) and Sir Scratch, the New York group came together in 1989 and debuted on Wild Pitch with Breaking Atoms -- an undeniably classic album, regardless of its field -- two years later. The group's production work, combined with Large Professor's masterful wordplay...