This latest EP is something of a daring experimental coda to this year’s excellent Borders, as studio wizards James Ginzburg and Paul Purgas attempt to translate their crushing, frequency-saturated onslaught into purely acoustic recording techniques. Obviously, there has been a lot of foreshadowing throughout the duo’s career hinting at this direction given Emptyset's longstanding fascination with architecture and natural resonance, but it was not until Borders that the essential missing piece was added to the formula: the viscerally biting snarl and rattle of a homemade zither. Given that Skin further constrains an already hyper-constrained vein of minimalism, this EP is primarily just for existing fans eager to see how well Ginzburg and Purgas handle pushing their vision to a seemingly self-sabotaging extreme, but a few of these simple variations survive the transformation with quite a lot of raw power intact.