The Nova Twins are a real phenomenon, with their look, carried off with panache, and above all their desire to embrace, in a gesture full of bravura and fury, thirty years of sonic contestation, made in England: the political aggressiveness of punk, the provocative verve of grime, the experimental hedonism of bass music. Add a bit of agitated hip-hop, this grime, urban punk - call it grunk if you like - is highly provocative and energising. Voices as brittle as the window panes in a disused factory, and bass lines worthy of the Tube trains that rumble through the London underground.