Segovia's performance once left me speechless - seriously, I could barely talk for an hour after his concert - and he deserves considerable credit for popularizing classical guitar in the 20th century - but he was a sorry teacher. As John Williams (a far better player than Seogiva, imho) has pointed out many times, Segovia was dogmatic and insisted that his way was the only way. See the Michael Chapdelaine (my favorite player today) utube, http://www.youtube.com/watch?v=wiAbqfaYGwk
where he was kicked out of Segovia's master class for not playing something the same way Segovia did. Contemptible.