The purpose of this study was to investigate the influence of music listening, singing, instrumental playing on phase of body heat range and its symmetric condition in proportion to the time of measurement. Subjects of this study were 24, among whom 12 were adolescents (6 males, 6 females), and 12 were adults (6 males, 6 females). In music listening activity, subjects had selected pieces according to his/her preference among six different genres of music prepared by the author and listened to it; in singing activity, subjects sang his/her preferred pieces along with the piano accompaniment after the procedure of breathing and vocal exercises; and in instrumental playing, subjects were to improvise to play drum set with experimenter\'s piano accompaniment. An Initial survey on general conditions among the subjects was undertaken on the day of the experiment, followed by pretest of measurement of body temperature using infrared rays apparatus. The subjects were given 20-minute intervention individually in one of music listening group (n=8), singing group (n=8), and instrumental playing group (n=8). Shortly after the intervention, and 10～15 minutes after the intervention, they underwent the body temperature examination as in the pretest. Two specialists and the experimenter analyzed the phase of body heat range and its temperature difference on both sides, and conducted repeated ANOVA in order to see symmetric difference on body heat in proportion to the time of measurement. Results from repeated ANOVA, the difference of skin temperature on both sides showed significant difference before and right after the intervention, whereas it did not show significant difference between shortly after the intervention and 10～15 minute after the intervention in all activities. The heat differences among types of activities were not shown statistical significances. After the singing activity, the phase of body heat range tended to become normal as the heat on the backside including face and neck area increased, and disperser of heat became symmetrical and normal. After the instrumental playing activity, the phase of body heat range showed tendency to expand even more than a normal pattern does, affecting on disperse and symmetric condition of heat. Although every participant showed individuality in the phase of body heat range after music listening, some participants showed the tendency that the temperature increased centering on the forehead.