The ability of a language's syntax to determine the application vs. non-application of postlexical phonological rules has by now been firmly established in a number of languages. Such rules, which apply above the word level, have come especially from the prosodic aspects of phonological structure, e.g. effects of syllabification, stress-accent, duration and tone. Much of the interest in this syntax-phonology interaction has centred around two general questions: (i) which specific properties of the syntax are available to affect the application of phonological rules?; (ii) how should these syntactic properties be incorporated into the phonology?