Great links, Fordim! Thanks.
I think that "plummy" is probably a good description. Much as one would expect an Oxford professor to speak.
I particularly like his pronounciation of Morrrdorr in his reading from
The Fellowship of the Ring. Nice that they used the same pronounciation in the films. I suspect that this was Ian McKellen's doing. Or perhaps Christopher Lee's?
The interview is great too. At one point, you can hear him puffing on his pipe!