Yes, I'm pleased by the help - thanks everyone. But to "Guest":
the G, (with comma) to D' was meant to say (in terms of the guitar) "from the G on the 3rd fret of the bottom string to the D on the 3rd fret of the second (B) string, i.e. an octave plus a fifth.
I understand that the classic classifications are based on a two octave range - trust me here, you don't want to hear me try that. Back when I was in my twenties, before I accepted that I just don't have much of a voice, I tried to increase the range, but the fact is that F (1st fret bottom string) and below only yields a weak croak, and anything above the D I mentioned (top string open up) produces a vile screech.