Are nearby any experiments conducted to control heart rate?

I'm doing a science project in which the question i'm answering is: Can music affect a human's heart rate while he or she is at rest? I'm having trouble finding any previous experimentation involving scientists attempting to control a human's heart rate.
Answers:
stop thinking scientist and come up with yogi. The practice of yoga and zen meditation have long fiddled with heart rate. And only just listen to a good bagpiper and your heart rate will rise. Listen to a dozen and you'll pick up a stick and go looking to bash something. With your heart pounding!
Even the old poets know it "Music hath charms to soothe the savage breast" [ it is breast, as in heartbeat, not beast]

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