Interesting. Here’s another strange resonance that he might be able to achieve, but it varies based on the instrument:
http://en.wikipedia.org/wiki/Wolf_tone
There’s another strange resonance I heard the other day on the radio. Massively painful to listen to. Literally hurt my ears and left me in a stare of mental confusion.I looked it up and apparently it’s called “Country Music” or something like that. God I have never heard anything so awful!
(ducks and runs ;)