Volume, Ego, Ediburgh, 14 April

As they are standing outside smoking, a crowd of girls debates the relative merits of the music on offer at Ego tonight. "Straw poll," says one girl. "Which do you prefer?" She cocks an ear towards the tinny house music emanating from the top floor. "I prefer house. The music downstairs is just so hard. So nasty. So... urban." It's hard to argue with her description, but you have to disagree with the look of repulsion on her face. Downstairs, Obscene's DJ termite lays down a set of strings-grime and dubstep, flawlessly marrying Diplo with baile-funk and Spank Rock, building pace. Great Ezcape's Profisee takes up the baton with some London underground grime, rhyming over the top with fellow MC Simba and some local headz. Nick G pumps the energy levels with some classics from Dizzee, Roll Deep, and Akala and Skinnyman's monstrously deep Shakespeare track. Finally, Termite returns to rinse out the sweaty crowd with some ragga jungle bizness. The underground urban sounds of Volume are on the rise - watch out Disco Dolly, ya might get murkled. [Bram Gieben]