I'm a guy and the highest note I can sing( not falsetto) is:
The C3 or The C above Middle C. For a guy, this is rather high and difficult to sing. So I'm proud I can sing this high.

Don't know how high I can sing but I have been known to shatter glass when I do.

I can now sing The First D above high C. It is a STRAIN to get up there, but I can manage :-).

What I meant was that glass shatters after it's thrown at me when I attempt to sing. :lol:

I have no idea, because I can't carry a tune.

I'm a 1st soprano and I can hit the highest notes of Climb Every Mountain without a problem but not sure what note that is.