It's where my wife sings it. That's usually right for me ;) It's fairly low compared with where she pitches things but seems to work well.

I think it's similar to where Liza sings it too. In fact I just had a listen to the CD and she does sing it in G.

I had the pleasure of hearing her sing it recently in a village hall close to here with her fine band. We also love doing 'Ain't No Sweet Man Worth the Salt of My Tears' which she sings with her mum which is also great fun to do.