Not only is Blitz Northeast Ohio’s most politically charged rhymer; for an up-and-comer, he’s pretty well connected. His forthcoming Double Consciousness LP sparks with appearances by Talib Kweli, M.1 of Dead Prez, Wordsworth, and Jean Grae. And for this show, he’ll provide a preview of fiery tracks such as “Emmet (S)Till” and “Black Market.”