The legendary cellist Pablo Casals was asked why he continued to practice at age 90. "Because I think I'm making progress," he replied.
Apparently, ballet dancer Margot Fonteyn once said, 'If you don't practice for one day, you notice the difference. Two days, and the other dancers notice. Three days, and the audience notices.'
Scary statistics, but it's probably true. It always takes me a little while to get back into the swing of things if I have been slack. Creative muscles need loosening and strengthening just like physical ones.
Daily practice, people – daily!