I think that the mean through which you can listen to music does not affect the heart rate, but the excitement that it provokes on the person.

According to an article whose link is at the end of this text, a person's heart rate changes while listening to music, but whether the heart beats faster or slower depends on the tempo of the music. In the November 2009 issue of "Harvard Health Letter," studies performed at Massachusetts General Hospital and in medical facilities in Hong Kong show that people who listened to music for 20 to 30 minutes each day had lower blood pressure and a slowed heart rate compared with those who did not listen to music. A University of Oxford study reported by Australia's ABC News in Science explains that music with a faster rhythm, such as rap, increases a person's heart rate, instead of providing a relaxing effect.

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