Answer:Perhaps the best singing exercise to help improve your vocal dynamics is messa di voce, an Italian phrase meaning “place the voice.” To sing a messa di voce, you sustain one single pitch, getting louder, then softer. The proper musical terms for getting louder and softer are crescendo and diminuendo, respectively.
He felt protective of his privacy because he knew how avidly his letters would be scrutinized. But he also destroyed so much music because he doubted he was worth the scrutiny