How to identify and differentiate between head voice, falsetto and whistle?
Look at this clip for example.
http://www.youtube.com/watch?v=sXM-Yr3upkk
The host said it's whistle, but in the comment section, some said that it's not whistle, it's head voice, another say it's falsetto.
Btw, why do people look down on falsetto? I read many comments on clips with people singing highnote. It's always "he's using falsetto", "she already use falsetto on the 3rd key" etc, saying it like falsetto is inferior. What's up with that?