Will Fly wrote
"she readily admitted that she felt unhappy with using a book and hoped to dispense with it when the three of them had been together longer."

From a phone call that I took today, I believe that I know the trio that you are talking about, Mike, and 'young' here is a relative term. One is a mum with two kids and they have been performing together for longer than you might think.... long enough to have learned the words and a bit about communicating with the audience.