Time Out's splendid London Sessions series goes full throttle as we take the festival season by the reins and take over Camden's Barfly for two whole days of stonking great music. Kicking things off are the thrillingly intense Liverpudlians Clinic with their compulsive grooves and spikey melodicism. Plus, Ipswich rapper Dels who adds a fine synthy spin on hip hop (Roots Manuva fans will approve), angular indie-funksters WHB and post-house electronocist KA. DJs Jeff Automatic (Transmission) and Barmisfits spin afterwards. Good times assured. Our final all-dayer is on Sunday (April 24).