On any given Friday night, the packed house in a tucked away bar in Manhattan’s Lower East Side moves to danceable grooves and drum ‘n bass, nods to sophisticated jazz and sways to funk and soul flavored rhythms; but it’s not coming from a DJ or the night’s roster of bands..it’s coming from one trio: QB3. QB3 is Christopher "Root" Heinz (drums), Fred Gerantab (guitar) and Emek Rave (bass), 3 friends and like minds from Queens, New York. The trio’s collective ability to mix solid grooves and m …