In a previous post, I said my best practice advice is “When you mess up, slow down. Every time.” As Michael Höltzel put it in his book:
“Slow practice = fast learning”
But, there’s a right way and a wrong way to apply the Tortoise Principle:
It’s so important that you play something right many, many more times than you play it wrong as you’re preparing for a performance or audition. As you can see, when you “creep forward, leap backward” you minimize the mistakes.