The study of violin exercises mathematical thinking and transforms rational knowledge into emotional expression. As an aesthetic accomplishment, the perfect combination of hands, eyes and brain not only exercises the brain, but also exercises the body, achieving the goal of developing intelligence and emotional intelligence in an all-round way. Specifically, the baby can learn the violin: the left and right hands move together, which can develop the thinking of the left and right brains at the same time, making the baby smarter; ? In the process of learning piano, children's ability to pay attention to things can be greatly improved, because their eyes should constantly sweep the music score;