by CVI Teaching Staff » Fri May 18, 2012 8:58 am
Well, this is mainly based on research.
Above the c2/c3 we simply need the flageolet to produce any kind of sound.
So to answer your final question: its based on the science of Acoustics as well as the fact, that we have never seen or heard of, anyone that could do a note above their high c without a flageolet on.
But...the flageolet tension can be more or less, meaning that it can vary in size.
The more the tension, the less of the vocal cords vibrating, the higher notes we can do.
So females/males are not separated by an octave - its closer to 5 notes.
Maybe that´s why you feel that the voices are similar in the very high part for males and the high part for females.
Could be that the people you are comparing both are in Neutral with more or less flageolet tension, making it quite similar.
Could also be that the male is in Neutral with flageolet and the female is not, making the support values more identical...?
Could also be, that a female with a "darker" voice, compared to a guy with a "lighter" on, will be more similar.
But generally, if a girl sings an a2 in Neutral and compare the work with a guy´s on the same note, the guy most certainly will work harder to obtain the note.
Does it make sense?
Kaare