and has now progressed to 2nd finger on the A and D strings doesn't actually know what notes he's playing when looking at the music.
ie - I asked him what the 2nd note was (B) and he just called it 1st finger on the A string.
He appears to have no concept of the fact that each line/space has a letter name, and that the instrument that it's played on makes no difference at all.
I have to confess I had kind of assumed that he would be taught the basic music theory as he had his lessons at school, so haven't really paid too much attention to that aspect of it until now - when I realise he seems to have no clue at all.