What, y’all didn’t get the memo about Jah C and Jaison Spain‘s habit of getting it in at all hours of the night and day? You haven’t even been formally introduced? Damn, then I’ve got a lot of ground to cover—or I would, if the Brooklyn-born, Harlem-bred rapper/producer and Harlem singer/songwriter/producer’s latest single didn’t do most of the heavy lifting for me. That is to say, I Thought You Knew tells you just about everything you need to know about their approach, which revolves around fresh, old-school grooves and gimmick-free displays of lyrical prowess. Jah handles production duties, serving up a head-nodding beat interpolated from The Incredible Bongo Band’s Apache and Big Daddy Kane’s Warm It Up, Kane to back his own tighly-wound, braggadocious bars as well as those of Big Apple trio Sleepwalkas (Ciph, Kassa Gaines and Vexed Lo). Spain tops the record off with the requisite dose of smoothness, lacing the beat with a laid-back chorus in addition to delivering soulfully understated backing vocals throughout. Like what you’re hearing? More scorching grooves and high-caliber rhymes await on Jah C and Jaison Spain’s Conception LP, scheduled to hit record stores and online retailers September 2, via Soulspazm Records.