Using music to tune the heart.  Music therapy, or just listening to music, can be good for the heart.
D001007:Anxiety / Q000517:prevention & control*; D003327:Coronary Disease / Q000517:prevention & control* / Q000628:therapy; D015444:Exercise; D006801:Humans; D019018:Imagery, Psychotherapy; D008405:Massage; D019122:Meditation; D009146:Music; D009147:Music Therapy / Q000379:methods*; D012064:Relaxation Therapy; D012648:Self Care / Q000379:methods*; D013315:Stress, Psychological / Q000517:prevention & control*; D026302:Tai Ji