Steve Schwartz:

>If all (or almost all) Hungarian words are stressed on the first syllable,
>then what does the thing that looks like an acute accent do to the
>pronunciation of Barto'k's name?

It alters the quality of the vowel, not the accent on the vowel.  O' o'
(accent aigu, in French, but we can't show it in ASCII here) simply
denotes a long o, as in the English word 'show.'

Perhaps our resident Hungarian, Janos Gereben, can amplify or correct
what I've said.

Scott Morrison