Indeed, understood and well put Paul. It happens in pedagogical circumstances; my thing is that for normal (e.g. not conservatoire) teaching, the tutor should be able to sight-read anything a student will bring in - preferably better than the student will ever play it.Paul Janssen wrote: Stephen, you are of course correct. In principal both of these events could occur (more so your second example). And I am certainly not trying to discourage anyone from becoming a proficient reader. I guess I meant for solo performances, it is highly unlikely that a guitarist would ever just get up and play a piece they have never seen or played before in front of an audience. After all there is already so many other things to worry about, why would anyone put themselves under this added pressure?
Similarly, for public classes, a tutor should be able to read pretty much anything, not, normally to play the whole piece for the audience, because that would be to kind of put the student down, but certainly to be able to demonstrate particular passages, alternate fingerings etc.
No soloist would ever, in a concert for which the audience was paying, sight-read prima vista; but the same goes for other instruments, though for piano-accompanied pieces e.g. for violin & piano, in principle the pianist might have to be sight-reading in an emergency.