Thanks, Guest. I rest my case.

Why, exactly, does an inability or unwillingness to remember a key, a title or a source render a musician unable to read music more 'traditional' than one who can? Surely you cannot be unaware that before the relatively recent development of electronic recording, notation was the *only* method of preserving accurately the musical inheritance we now have. In any case, I don't have a convenient shepherd living in a bothy round the corner. So I learn tunes from books.