That there are a higher proportion of black people in d&b clubs in london than the average population proportions - true. That the clubs are 75% black? Erm, which clubs are you going to? I've lived in london and been raving for a decade, and I'm yet to come across an all black d&b night. Maybe I've just been going to strangely white clubs and raves. They're all the major ones though...

Brixton tends to do more of a line in hard tech & acid techno. Which you can have as "white music" if you like. But if you are going to talk about "key innovators" techno is deeply in debt to all its detroit godfathers (mostly black), and players like carl cox, dave angel, dj rush, countless others.

Go to an R&B night at subterranea and that is almost 100% black. D&B has always been mixed. And more white than anything else. Black faces are maybe more memorable as there are more than usual, but it would be wrong to say the majority were black. D&B seems to mostly be made up of white teenage/early 20's boys, in London and all across the UK.

I'm not trying to be antagonistic so I hope this doesn't come across as agressive. And its nothing to do with political correctness. I just don't agree with your observations.

Peace.