"I would advise performers with words to practise in front of a mirror, and practise each song often s0 that they do know it well and use the sheet as a last resort.
to insult and accuse , people of ac different opinion of arrogance and snobbery is in my opinion a sign of losing a discussion.
quote from Socrates "When the debate is lost, slander becomes the tool of the loser."

No insult Dick, no accusation or slander in my post, just a simple straightforward question.