Then you know what I'm talking about, Gargoyle. My quartet is two baritones, a bass and a second tenor. We don't have a high tenor, and on some songs, depending on the key and when the tenor is singing the lead, we can't find enough space for three harmonies below him, and no one can naturally sing a harmony above him. When that happens, our other baritone, Frankie, sings falsetto. It's a great blend, with the falsetto counter-balancing the bass and I just fill in the middle.
Nothing un-cahones about it.
And Margaret, down under... I'm glad to see that someone knows who Claude Jeter is. Forget Caruso, or Pavrotti. The most amazing human voice I've heard is Claude Jeter's.. (just kidding, before anyone rises to the defense of Caruso or Pavrotti.) But, for falsetto, I don't believe there has ever been anyone who sang with such strength and emotion, taking the voice up to such a stratospheric level.