Just discovered, thanks to the help of my much better half, that I have a vocal range that runs from the F two octaves below middle C up to the G two octaves above middle C (ie 3 octaves). I should emphasise that I wouldn’t want to sing something using all of that – my “comfortable” range is probably less than two octaves – but it reinforces something a singing tutor once said to me – I’ve got a powerful instrument, I just need to learn how to use it properly. Definitely something to pursue.