(1) Relieve melancholy: Use music that can open the mind and relieve depression, and choose music with bright rhythm and smooth melody, such as Beethoven's minuet in G major; Mozart: Romance; National music: happiness, sunrise, BBK, etc.

(2) Eliminating irritability: Use music with calming effect to eliminate patients' anxiety and anxiety, and choose music with soothing and leisurely melody and low and soft tune, such as serenade, lullaby, plum blossom play, moonlit night by the river, etc.

(3) Restrain pessimism: use music that makes people relaxed and happy, and choose music with melodious melody, lively rhythm and beautiful timbre, such as Beethoven's Fifth Symphony; National music: birds flying towards the phoenix, etc.

(4) Relieve indigestion: use the melody of music to improve the function of gastric juice secretion and gastric peristalsis, and choose music with beautiful and elegant melody, natural stretch and smooth flow, and little change in strength, such as Beethoven: the first movement of spring sonata; Tchaikovsky: Four Little Swan; Folk music: fishing boats sing late, Pinghu autumn moon and so on.