Shockingly, it's been almost three years since we last heard new material from Chaos in the CBD aka London-based Kiwi brothers Ben and Louis Helliker-Hales. This two-tracker is not only well overdue, but also as quietly impressive as you'd expect. Title track and A-side 'Sirena Deep' lives up to its name, offering a subtly summery shuffle through lightly dubbed-out, organ-rich deep house goodness complete with an expressive and tasteful flute solo from fellow New Zealander Nathan Haines. Those looking for a more driving, sub-heavy and late-night focused workout will love flip side 'Outdoor Limit', where creepy, ghostly chords and textures ride tough house beats and a deep, dubby bassline.