Beirut:1967, for the first time the electricity goes out during the play "Hala wal Malek" what did they do?

they were not used to electricity cuts back then, Fairouz was glowing on the stage, in one of the the greatest Rahbani productions "Hala Wal malek", i Al Rahbani was conducting the orchestra, and the lights went out, what do you think was the great thing they did so that when the lights came back, the crowd shouted, "Turn off the lights" ?