Preface -- 1. The representation and nature of tone -- Do we need tone features? -- Rhythm, quantity and tone in the Kinyarwanda verb -- Do tones have features? -- Features impinging on tone -- Downstep and linguistic scaling in Dagara-Wulé -- 2. The representation and nature of phonological features -- Crossing the quantal boundaries of features: Subglottal resonances and Swabian diphthongs -- Voice assimilation in French obstruents: Categorical or gradient? -- An acoustic study of the Korean fricatives /s, s'/: implications for the features [spread glottis] and [tense] -- Autosegmental spreading in Optimality Theory -- Evaluating the effectiveness of Unified Feature Theory and three other feature systems -- Language-independent bases of distinctive features -- Representation of complex segments in Bulgarian -- Proposals for a representation of sounds based on their main acoustico-perceptual properties -- The representation of vowel features and vowel neutralization in Brazilian Portuguese (southern dialects) -- Index.