For more than a decade now, Fleck E.S.C. has marked himself out as one of the most playful and prolific producers in the electro game. Across dozens of releases for labels including Bass Agenda and Science Cult, the France-born, Japan-based artist has made his name through a production style which balances limber beats with exploratory textural work. Fleck E.S.C. debuted on Central Processing Unit in 2018 with the Discrete Opinion EP. Now, after stopping by the Sheffield label last year on a Silicon Scally remix job, Fleck E.S.C. delivers his second EP for CPU in the form of Rough Silk. The record's intriguing title proves an apt introduction to this four-track affair. These cuts are at once sleek and abrasive, anchored by robotechnic machine-funk grooves yet also full of strange, shifting shapes. The opening title-track expertly sets out Rough Silk's stall. Heralded by gurgling synths and all manner of whirring percussive tones, 'Rough Silk' blossoms around the minute mark with the introduction of a wickedly buoyant lead synth. This is music at once visceral and full of mystery, the sound of wending through the back alleys, and the feeling carries through to the following cut 'Hat in the Cat' - as the synth pads spool out overhead, the machine-funk snap of the beat has an almost aquatic quality that links it back to Drexciya. Much like 'Rough Silk', the record's first B-side 'Faking Sweet' also shifts gears. The opening strains of the track seem to be preparing for another insistent, expansive broken-beat pulse, but it stiffens its neck around ninety seconds in. Programmed drums whirr around a jittery machine-gun bass while discordant synths pull at the edges of the track, all of which brings a strong dystopian energy that increases further as the percussion sounds become increasingly bug-eyed. After so much excitement, 'Digger Play' closes out the EP with a softer touch. There's still plenty of low-slung bounce to the beat, but the track runs a little slower, and there's a warm wistfulness in the synths which gives 'Digger Play' a painterly, almost poetic feel. However, while it may take its foot off the gas, the production here is as deft as it is everywhere else on Rough Silk. With new EP Rough Silk, electro whizz Fleck E.S.C. brings the sort of casual mastery to proceedings that has characterised his career to date.