Is it even worth mentioning that there's a lot here that doesn't sound anything like most people's idea of jazz? Ever since the release of Polar Bear's breakthrough second album Held On The Tips Of Fingers, in 2005, Seb Rochford has gleefully followed any musical whim that's grabbed him, augmenting instrumental jazz with elements of electronica, funk, drum ’n’ bass and rock. Sure enough, this fifth album centres on a dark, electronic heart. Here, glowering effects and swirling, tactile textures take centre stage, backed up by an urgent rhythmic imperative with an emphasis on post-dance grooves: ‘Be Free’ rides the clipped bump and click of minimal techno; ‘Chotpot’ fizzes on a pumping house hi-hat; and ‘They're All Ks and Qs Lucien’ stirs up a gritty urban highlife. In this context, the twin saxes of Wareham and Lockheart are left to roam the peripheries, offering supporting flurries and louche commentary but rarely stepping up for a traditional solo spot. That said, the vestiges of more conventional jazz tropes can still be detected: ‘Lost in Death Part 2’ feels like a 21st century update of Coltrane's ‘Olé’ with thrummed double-bass and astral electronic whooshes; while the fiercely churning ‘WW’ shows that Rochford et al can work up some vicious skronk with the best of them when they feel like it. They just usually don't, that's all.