Music is a special material form, which is often thicker and more penetrating than words. It can act on people in the form of matter, causing psychological changes. Melodious music, melodious melody, make people immersed in music, eliminate other thoughts, calm down, make people breathe slowly and relax, so as to adjust their body and mind and achieve the effect of good physical and mental health. You've heard of music therapy. Isn't that an extension of the magic of music? Beethoven, Mendelssohn, Bizet and Bach are all masters of creating music that regulates emotions. Bicai's "Overture" has the function of inspiring mood, and "Nocturne" has the function of nourishing the soul and prolonging life. Mendelssohn's scherzo has the function of strengthening brain and improving intelligence, Allegro has the function of eliminating troubles, and overture has the function of stimulating appetite. Bach's lyric dance music allows you to release your body and mind when you are tired, so as to achieve the purpose of relieving fatigue.