This paper presents an analysis of exceptional prosodification effects, in which exceptional lexical items appear to follow a regular pattern that is found in a different prosodic context. These patterns have been analysed as cases of prosodic prespecification, where morphemes select a non-default prosodic representation. I argue that prespecification approaches should be reconsidered, and that such patterns are predicted without morpheme-specific prosody in Gradient Harmonic Grammar, a weighted constraint system with gradiently active symbols. Exceptional prosodification effects result from the interaction of two influences on constraint penalties: (i) scaling of constraint violations by prosodic context and (ii) contrastive activity values in underlying forms. This interaction is illustrated with the distribution of French nasal vowels and linking [n]. This approach reduces the amount of structure posited for URs, and provides new arguments for a more uniform syntax–prosody mapping.