First of all, it's important to understand that the sound of music. A sound environment. Children in the womb of the mother, the father's DNA from a mother. Therefore, children born and children become children of the environment and environmental issues that we have not seen it, it is a sound which is a 24-hour children's brain development, it involves sound, because sound is a matter of sound energy into movement. When the sound wave is sound energy into electrical charge. Sound power, it will cause movement. The movement caused by a sound, it will cause a change. The changes will cause development. When it is developed, it will have to grow into. It is easy to understand if there are no children's voices will not develop because the power is not working.
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