The mechanically melodic “H.B.B.” kicks off Tony Ollivierra’s latest single to be released via Exchange Bureau, a double single that includes remixes by DJ Maxximus as well as IZC. Ollivierra, who has ditched his Ibex alter ego for this release, quickly attacks the listener with this infectious bass rambling that refuses to follow any preset parameters of what we’ve come to expect — not quite Ibex, not quite like anything we’re used to and nothing short of engaging and arousing in the same breath and beat. DJ Maxximus, a highly respected dubstep/grime producer and DJ who has recorded and released for the likes of Ambush and Warp, manages to extract the abstract dubstep qualities of Ollivierra’s work by remixing “H.B.B.,” plunging directly into a constantly shifting, constantly growing genre that has yet to be completely categorized.