Peter Perret said this quote

“ Our musicians in residence carry this belief into the classroom. They don't think of children's self-esteem as so fragile that it will be shattered by the suggestion that the child guessed wrong or jumped to an invalid conclusion. They make corrections matter-of-factly, with no feeling that a chid is a failure because she has made an error, but with ocnfidence that the feedback will help the child learn and be accurate the next time. ”