if we all originated in Africa or the 'fertile crescent' and pale skin was an evolutionary development for colder climates (hiding from sabre-toothed tigers in the snow?) and music is natural for mankind (which I believe it is) - then all music is MOBO.
even with 'classical' music, Italy is across the med from north africa - who is to say that the traders of Venice or the other sea-faring nations did not bring back musical influences?
listen to Afro-Celt Sound System / Afro-Celts - their easy fusion of Celtic and North African music suggests musical links dating back a long way. astounding though it seems, Britain was trading with the ancient Egyptians and our 'indigenous' musical roots are shared with north africa for at least 3,000 years - I can't recall which era of Egypt the evidence of trade goes back to, so it may be 5,000.
I don't really like the 'MOBO' brand, but it is probably no more discriminatory in theory than Kerrang...although if he had lived, Hendrix would doubtless be picking up awards from both.