INDIAN MUSIC: 'Raga' (musical scale) is a set of musical notes presented in an orderly manner in order to generate a melody out of the same. Matanga (9-10th century AD) in his work 'Brihaddeshi' was the earliest to define raga as "raga is that kind of sound composition consisting of melodic movements which has the effect of colouring the hearts of men". However, there have been very few studies which have used Indian classical music as an intervention for studying their health benefits. Gandharvaveda, a part of Sama veda, has mentioned various ragas to have myriad health benefits.Dr. Burnell has mentioned a manuscript named raga chikistsa in the collections of Saraswati Mahal Library in Tanjore which deals with the various ragas that can be used for curing various ailments. For example raga Malkauns is said to help in curing hypotension. Insomnic patients are said to benefit by usage of raga Behag. 'Heart Rate Variability' has become the conventionally accepted term to describe beat-to-beat alteration in HR, and RR intervals in ECG. The cause of HRV is considered to be respiratory sinus arrhythmia as well as low-frequency oscillations (0.1 Hz) associated with Traube-Hering-Mayer waves of BP . It was found that a decrease in HRV was a strong predictor of mortality after acute myocardial infarction . HRV is assessed by either time or frequency domain methods. EFFECT OF MUSIC ON BLOOD PRESSURE:Many studies have shown that there is a modification of cardiorespiratory parameters on repeated rhythymic recitation of a prayer, poetry or yoga mantra . So it is not surprising that music (rhythmic repetition of notes and tones) can also have similar effects. A number of studies have reported that listening to sedative music (slow tempo, legato phrasing, and minimal dynamic contrasts) can lead to decreased HR and BP. BP was shown to be proportional to the crescendo present in music, where as music with uniform emphasis reduced the BP .