"What we found was the more a child trained on an instrument," Hudziak told the Washington Post, "it accelerated cortical organization in attention skill, anxiety management and emotional control. ... In short, music actually helped kids become more well-rounded. Not only that, they believe that musical training could serve as a powerful treatment of cognitive disorders like ADHD." In other words, a child or even an adult who commences music studies will experience improvement in language and conception skills, in the way they process information and in the way they perceive things.
But music is not all mathematical and clinical analysis of intervals and progressions as it stems from the deepest part of our soul. The first thing that emerged in the universe is sound and everything is imbued with and part and parcel of the primordial sound. That's why when we feel troubled we turn to music for solace. And, when we're happy we turn to music to express our joy. Music gives us balance as it helps us to map our emotions that in turn calms the mind. It brings us peace. Makes us tranquil. Source of quotes: https://mic.com/articles/108022/science-just-discovered-something-amazing-about-what-childhood-piano-lessons-did-to-you