They say London is dying (again): this time smothered by affluence, its youth fleeing for affordable refuge in the provinces, its culture concreted over by the corporate Cyclops. As far as new music goes, these are tough times in the capital, for sure (where are they not?), but the established ensembles and organisations cling on like the tenacious buddleias on the walls fringing suburban train lines, and here and there new cracks appear in the pavement, energetic wildflowers springing up through them to take their chance in the light.