Dubstep may have found a novel approach to its inherent darkness and sparseness in techno; might there be an alternate path, though, one in which dubstep finds less subterranean manifestations in the dapper grooves of house? Aus Music, the debonair and slightly experimental tech-house imprint founded by Will Saul and Fin Greenall, answered in the affirmative with its recent and astounding Appleblim & Komonazmuk rework of (Greenall-fronted) Sideshow’s “If Alone.” The label continues its genre-melding trek with two new EPs of exclusive tracks from All Night Long, Saul’s new mix celebrating Aus’s twentieth release. Though never quite reaching the sublime heights of “If Alone,” Saul has curated four generally strong sides of house music in flux.