[ Sharon smirks. Metallica and ACDC were definitely more Tony's thing. ]

Gregorian chant. Gregorian monks sang it? Some people still do. It's... kind of weird, because it can be used to make people fall asleep, but it can also be used to scare the crap out of them. Depending on what song you've got.

[ She pursed her lips together and tries to explain as best she can. ] I had to take a music appreciation course in school. Some things stick. Don't fall asleep to it after seeing The Exorcist, though. Trust me on that one.