Aida, Royal Albert Hall, London
Royal Albert Hall, London: It's easy to be wary of Raymond Gubbay's 'in the round' operas at the Royal Albert Hall. The singers are miked (as is the orchestra), each show has to chase theatrical effect befitting of the grand setting, the star count is low and audience numbers high. But with scores of priests and priestesses, strapping Egyptian soldiers and oppressed Ethiopian slaves, plus some eye…