Despite the watery divide between them, Brooklyn-bound Greg Schappert and London-based Tom Russell have fostered a production partnership as Donor / Truss for the last six years, emerging today as one of technos more robust and hardworking duos. For Grey Series 05 they don the Donor / Truss moniker once again after a spell apart, proving themselves as accomplished and unpredictable as ever with the fully formed ‘Aber’. On the A-side swampy techno is bruised with house in “Spacial”, turning soupy on the sluggish and barely rippling “Beneath”. Fidgety “Ease” then does an about turn on the B-side before plunging headlong into swollen substrata stuff on the close.