Gradience and variation have always been a central issue in phonetic and sociolinguistic research. Gradience introduces variation in phonology as well. If a phonetic entity can be pronounced in different ways, depending on the environment, prosodic factors or dialectal influences, this ‘gradience’ may introduce ‘variation’, which we understand as a stable state of grammar.
Frank Kügler, Caroline Féry, Ruben van de Vijver, University of Potsdam, Germany.