The ragas in Indian music are based on principles which provide for different feelings like irritation, happiness, sorrow and so on. It has been established that certain ragas have the power of evoking feelings of happiness, sorrow, pain and anger. For example, raga 'Todi' can elicit tears while 'Shankhadhani' has the power to refresh. Rage 'Bhairavi' encourages detachment while 'Yaman' creates serenity. Background music also proves to be a panacea for many ills.
Music is capable of improving happiness, peace, health and concentration.
It is however important to know the method and duration for which Music Therapy is to be administered. This knowledge can be obtained through regular experiments and experience. The first step towards this is the correct diagnosis of the disease and then the selection of the precise raga that will be helpful. Procedure, discipline and Systematic method will help achieve this goal.