Joss's vocal range

I don't know anything technical about music, but I've always loved the tone and sound of Joss's voice.   This seemed interesting and someone put a lot of effort into making it.   It may mean something to those with more knowledge of music.
  

That's very interesting - I understand that is a very wide range.  

https://en.wikipedia.org/wiki/Vocal_range

I'm learning the piano this year and I recognise most of the notes but not the numbers. What do the numbers mean?

beauferal wrote:I'm learning the piano this year and I recognise most of the notes but not the numbers. What do the numbers mean?

Hope this helps.............

https://en.wikipedia.org/wiki/Scientific_pitch_notation

Fantastically helpful 

Thank you very much