Sound healing, a form of music therapy in which music plays an important role, is defined as the use of vibrational frequencies of sound forms, combined with music or its elements (such as rhythm, melody, and harmony), to promote healing (Goldman, 2017).
According to Crowe and Scovel (1996), music therapy and sound healing are two ends of a continuum spanning all forms of healing with sound and music. Whereas music therapy uses a more psychological approach, sound healing uses a neurological approach, based on the effects of sound waves on the nervous system.
The effectiveness of healing sounds is based on the ability of harmonics to create vibrational changes that may occur in the physical body or in the mental, emotional, and etheric bodies. When these changes occur, healing is initiated (Goldman, 2017).