Way back in 2010, the Long Island rapper Roc Marciano released his self-produced album Marcberg and essentially invented a new subgenre of underground rap. That subgenre doesn’t really have a name, but you can hear echoes of Roc Marci’s bleak, meditative beats and whispered, intricately worded goon-talk in virtually all of the smoky boom-bap that’s come along in the past decade. Roc Marci remains one of the leading practitioners of that sound, and his 2020 album Mt. Marci was one of his best. He’s also directly stamped that sound on a few of his stylistic descendants. Last year, for example, Marci produced all of Reasonable Drought, the breakout album from the hugely promising Syracuse rapper Stove God Cook$. Today, he’s done the same for Flee Lord.