This article makes two points: (1) that isochrony, the rhythmic organization of speech into more or less equal intervals, is primarily a perceptual phenomenon; and (2) that there exists a way in which isochrony is integrated into the grammar of English at the syntactic level. (Author/CFM)

The following three levels of intonation are described, and their relationship is discussed: 1) a concrete and atomistic level of the perceptually relevant pitch movements, 2) a concrete and global level of the audible pitch contours and the measurable fundamental frequency curves, and 3) an abstract and global level of intonation patterns.…