The very interesting thing is that I have learned, from a musical course that I am taking from Yale, that Gregorian Chant is the only music on earth which does not possess a beat. A beat is what humans naturally ascribe to/look for, in musical listening experiences; so looking for Gregorian Chant is not a natural action to take; it is in fact an unnatural choice for music. You definitely don't see a million teenagers screaming out the chants like they would scream out modern-day pop music! So I find this fact to be fascinating and highly intriguing!
I feel like the fastest way to cast a caim (circle of protection) around one's self, is to listen to Gregorian Chant. But that's just me, and you don't have to believe that, I am just one to share the things in me that try to fly out of me, at times, and this just so happens to be one of those flying things!