This study will use listening to traditional music as the therapy for the control group. Traditional music therapy is not specifically a placebo therapy, as it has been reported that traditional music therapy shows effects for a diverse number of psychological disorders. However, there is no doubt that OMMT is different from the listening to traditional music. The OMMT is based on traditional Korean medicinal theories such as the yin/yang theory and meridian theory. OMMT does not involve the passive listening to music; patients actively move their body, play the instruments, and thereby release stress. Although similar elements of music will be used, the essence of the two therapies is very different.