Doing an opera in the Roundhouse is stupid. Very stupid. Mostly because you cannot have a unamplified spectacle done in a round stage/auditorium with the singers facing different directions. Sound is a directional thing, you know, with waves propagating towards a specific direction. And the voice is projected on a single direction. This is the most basic thing in acoustics. And voice is the most basic thing in opera. So this does not work.