Ron,
It would appear that it's a piece of folklore I have picked up on the way through life - am happy to be corrected.
"Congratulations, by the way on having your wisdom on falsetto cited on Google"
I appear to be in good company. Had I known it was there I would have double-checked before displaying my ignorance (not the infallable Wikipaedia, surely?).
Thank you for putting me right.
Jim Carroll