Dave Tarrida/Lief Ryan, Substance, Henry's Cellar, Edinburgh, 25 Aug

If you've been clubbing in Edinburgh at any of the techno clubs to be spawned, you're guaranteed to have heard a Tarrida record at least once, if not witnessed the man himself. The former Sativa (Edinburgh) and Test (Glasgow) resident now resides in Barcelona, making frequent appearances at Sonar and various Love Parades across the world. His brand of energy-injected techno errs on the side of punk, rave, and funk, with a healthy topping of bass. Supporting will be live performances from Lief Ryan (Growth Records), and Operator (Scandinavia). Lief indulges the more urban side of techno, with wonk aplenty and the occasional grime influence, while Operator will take the reins for the bouncier side of house and electronica - Neil Landstrumm credits him kickstarting the Scandinavia label into fresh territory. Substance resident Gavin Richardson will be the final addition to the five star festival line-up. [Struan Otter]