Amazing how often you see something similar to this actually happen! In a more serious example, the famous Australian Wagnerian soprano Marjorie Lawrence is reported to have also had a very simple and short warm up. For those who may not be aware, singing the Wagnerian operatic repertoire is one of the most difficult and demanding of all. Each opera is about 5 hours long and most characters sing very long sections of music over 120 piece orchestras acoustically – no microphones of any kind! Their voices must be heard at the back of large opera theatres. It’s a huge ask.