West Coast pioneer DJ Pooh innovates as the sounds of hip-hop shift. He punctuated King Tee's neighbourhood narrative with jarring noise on the spare slice of life "Act a Fool". In the '90s, Pooh looped the Isleys to underline the emotional nuance of Ice Cube's bittersweet "It Was a Good Day". And on Tha Dogg Pound's "Smooth", fat, buzzing basslines and crisp snares soundtracked his region's dominance.