Spencer Parker's Work Them Records reflects his uncluttered attitude to electronic music. Regular vinyl shopping to unearth and delight in non-digital gems, energetic tracks from the deepest house to the most ardent techno, all focussed on one thing: the dancefloor. For its fifth release, he's captured one of his current favourites to bring their wide-ranging and organic sounds to the table: Pittsburgh Track Authority. The trio's first and brilliant EP in 2013 follows twelves on Argot and Uzuri, and is a neat representation of the expansive borders of Parker's own record box, taking in the spectrum from driving, bleepy techno to nervous, shuffling bass-driven house. 'Strenf' opens to dense kicks, sparse hats and distorted, coiled chords, before analogue stabs and a repeating note punctuate the foreground, like the centre stripes on an endless road at night, ever-present and pointing the way. There's energy brimming from all sides, as chattering fx and organ-like leads enter the fray, and elements emerge and dissipate, but the pace never slackens. 'The Standard' trades in bright chords and off-centre drums to joust with the baseline's steadfast groove, a study in barely-contained force arguably more sparse than 'Strenf'. Its throbbing mood is offset by 'Missile 1's tension-releasing electro-tinged workout. Containing a centred sinuous medley of rasping b-line and rich stabs, with shakers and echoed rim shots adding colour, the contrast is measured and welcomed. Closing out is 'It's Time', a stuttering, nervy weave of angry low-end rasps, murmured, chopped vox, and competing mids, punching through and retreating as if in competing formations. Heavy.