The ethereal musical instruments are widely used in Buddhist temples, piano rooms, tea gardens, piano rooms, yoga meditation, prenatal education, music therapy and other places. Because the timbre is beautiful, it can purify the soul, cultivate sentiment and enhance spirituality. The ethereal musical instruments are divided into eight tones and 13 tones, which are composed of China national modes. Eight-tone ethereal musical instrument consists of five modes of China, namely Gong, Shang, Jiao, Zheng and Yu. Thirteen-tone ethereal instruments have a wide range, with seven scales spanning octaves.