I could make you a copy in A, Tattie, but you have to PM me and provide an e-mail address. The lowest note will be the G-sharp below middle C.

Or how about B flat, which is not quite so far down in the basement?

I remember a song our choir sang in concert once. It started out in the neighborhood of low G and went fine in rehearsal. But at the concert, people tensed up, and we could not sing the low G's and A's. The song started with three measures of silence from the choir, even though we were all moving our lips.