A 25-year-old rapper, Porter Ray Sullivan was once described to me by Shabazz Palaces’ Ishmael Butler as “the Golden Child.” A son of Seattle’s Central District, Porter Ray namechecks Butler and revered Seattle MC Infinite as influences. Appropriately, “5950′s” is 206 from head to toe; named for a model of New Era baseball cap, it’s described as sporting Mariner teal throughout Porter’s stunning debut, BLK GLD. Here, Porter reels off the minutiae of murder, betrayal and narcotic sales with a poetic eye that recalls vintage Nas, tempered with a numb, gray-sky detachment (and aided by a sterling verse from Nate Jack) all over shimmering piano keys, a subdued drum shuffle and quiet-storm rain effects. In this city — built on, around, and seemingly under water — it’s even easier than you’d think to get washed, depending on where you’re standing.