In many ways, EP opener “Faces in My Memory” is the archetypal Porter Ray title: His work wrestles, almost obsessively, with the past, with nostalgia, with things or people who’ve touched the young rapper’s life before abrupt exits. His opening triptych of tapes (WHT GLD, BLK GLD, and RSE GLD) reflected this introspection and refracted it in gorgeous, soulful fragments of growing up hustling in the pre-gentrified Central District through the haze of high-school sweethearts and kush smoke…