Instead they performed in an empty section of the cavernous basement, dancing on two square stage areas connected by a thin causeway.
David Gockley, general director, expected the video to provide an alternative for patrons whose views of surtitles and rear stage areas were obstructed.
The building is windowless, he said, because the theaters open onto a common lobby, while stage areas form the outer walls.
The Bournemouth Air festival, set to take place along the Bournemouth seafront, called off its show after exceptionally high water levels damaged the beach stage areas.
The responders follow the crowds, so from 6am until midday, they concentrate on the market areas, moving later to the stage areas and on to the entertainment areas after the stages have closed.
The management also pointed out it would be a chance to refurbish the Festival Wing "and address current urgent problems including poor access, worn out services and the need to upgrade stages, galleries and back stage areas".
