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Do you like to listen to music when you feel sad? Do you like to sing songs in the shower? Music is everywhere. But in many countries, music classes in schoolsare left in the basket.
These days, because of the bad economy（经济）in the US, some schools fired（解雇）art teachers including（包括）music teachers. Some students don't have the chance to learn music. In China, there are no exams for music. So many students choose to make use of their time and study subjects like Science, Maths and History.
But do you know that learning music helps children grow?
"Playing music is like doing different things all together, "said Gottfried Schlaug at Harvard Medical School. For example, when playing the piano, people see the music notes. And they decode（解码）them. At the same time, they use their fingers to make sounds. You do all these things at the same time.
Scientists say that music helps with science too. Einstein played the violin. And German physicist（物理学家）Max Planck did well in playing the piano.
Music is also a very valuable thing. It makes you interested in things, and it makes you happy, according to US National Science Foundation.