The last time Wolf Trap used their trapsystem was for the Russian Bolshoi Ballet. It seems that the tradition of trap systems in Russian theatre lives on!!
It looks like they are being projected onto for at least certain sections of them...but I think they are projected up through them for the tops and bottom
im really enjoying the long lived camera shots with slight soft transitions between them much more pleasant than the 3 second then jump cut that you see in most us live events