While looking at some info on vocal ranges I came across this description of a vocal range known as whistle register.
http://en.wikipedia.org/wiki/Whistle_register
Seems painful to me…
I figured out I must be a female baritone, so there’s no fear I’ll hit a note in that whistle range.
Heh. I never knew it was called the “whistle register”. Notes sung up that high hurt my ears. I’m not sure why my whistles don’t.
Two words:
Julie Andrews.
or Minnie Riperton
It defines whistle register as being above E6. Where is E6? Is it the E on the top space of the trebel clef staff? Or is it the E on the bottom line of that same staff? Or is it somewhere else entirely?
Two more words… Mahria Carey.
Ok, middle C is C1. The E above that is E1. Add one octave, E2. Rinse, repeat until you have E6.
This puts it very high above the treble staff.
I can make D1 in great pain! I can sing with elephants in the subsonic range.
MarkB
In music, a soprano is a singer with a voice ranging approximately from the A below middle C to high C two octaves above middle C (i.e. A3-C6).
A mezzo-soprano (meaning “half soprano” in Italian) is a female singer with a range usually extending from the A below middle C to the A two octaves above (i.e. A3-A5, middle C = C4)
A typical alto will have a range from around the F below middle C to the D a ninth above middle C (i.e. F3-D5); at the bottom of their range, altos sound almost like tenors. Some altos have even larger ranges; from the C below middle C to the C two octaves above (C3-C6 if middle C is C4).
A typical tenor will have a range extending roughly from the C an octave below middle C to the C above middle C (i.e. C3-C5).
In music, a baritone is a male voice of intermediate pitch, between bass and tenor. It is typically written for in the range A one octave and a third below middle C to F above middle C (i.e. A2-F4), though it is often extended at the top
A typical bass has a range extending from around the F below the bottom of the bass clef to the E above middle C (i.e. F2-E4)
Looks like from this that the E6 that starts whistle range would be the E two octaves above the E above middle C. That is according to this Wikipedia article.
Ah, looking at it, that Wikipedia site has a different system for designating octaves than I learned…
Or maybe I need a refresher… 
Who knows?
Heck, I’ve played piano most of my life and never thought to call middle C anything but that.
This was prompted by our practice for our church’s Christmas musical stuff. I’m always frustrated/irritated because I can’t sing in a “female” vocal range and decided to try to figure out just what range I do sing in.
From this article I’m closer to baritone than tenor. 
It’s always, “the men and Betsy, sing this part.” 
I would be very happy if I never heard another soprano sing, especially in opera. Mezzo soprano, now that is completely different. That is a range that I like.
I think I’m a baritone too. I thought I was a tenor but the C above middle C would be awfully hard to hit. I think that would be an unusual tenor note, wouldn’t it? The lower baritone range would be too low for me. I just sing low and not very well. That pretty much sums it up. 
I sing in the popular protestant monophonic range of register. This would be the foundation note of congregational singing in that no notes go below this, unless there is a deep slumber. 