When Jay-Z told us “you ain't got enough stamps in your passport to fuck with young H-O,” we shrugged; if the scrappy Montreal D.J. Ghislain Poirier were to make the same boast, we’d nod vigorously in agreement. Blending everything from dance hall to Kuduro (Google it) to whatever the kids will be banging in the favelas tomorrow, Poirier kicks off all sappy world-music associations for his jagged, chilling beats. No Ground Under’s sound, dubbed “global ghettotech” in some more clever quarters, is an unflinching step forward for electronic music.