This dissertation is an empirical and theoretical study of sentence-level prosody in Conamara (Connemara) Irish. It addresses the architecture of the syntax-phonology interface and the relation between syntactic constituent structure and prosodic structure formation. It argues for a fully interactional view of the interface, in which the phonological form may be influenced by a number of competing factors, including constraints governing syntax-prosody correspondence, linearization, and prosodic well-formedness. The specific proposal is set within the framework of Match Theory (Selkirk 2009, 2011), an indirect-reference theory of the syntax-prosody interface in which correspondence between syntactic and prosodic constituents is governed by ...