What is a tone language?

A tone language is one in which pitch is used to distinguish word meanings or grammatical forms; for example, in Mandarin Chinese the same syllable can mean different things depending on its pitch contour.

What is a pitch accent in intonation?

In the autosegmental-metrical model, a pitch accent is a tonal event (a high or low tone, or combination) associated with a metrically prominent syllable, marking it as intonationally prominent within the phrase.

Tone and Intonation

Tone and intonation both use pitch, but tone distinguishes words and grammatical categories while intonation conveys meaning over phrases and utterances.

Definition

The linguistic use of pitch, distinguishing lexical and grammatical tone from phrasal and utterance-level intonation.

Scope

This topic covers the use of fundamental frequency in language. It treats lexical tone, in which pitch height and contour distinguish words in tone languages, the representation of tones as autosegments on their own tier, and tonal processes such as spreading and downstep. It also treats intonation, analyzed in the autosegmental-metrical model as sequences of pitch accents and boundary tones associated with prominent syllables and phrase edges, and the meanings intonation conveys. The treatment is descriptive and analytic.

Core questions

How does lexical tone distinguish words in tone languages?
How are tones represented and how do they spread or interact?
How does the autosegmental-metrical model analyze intonation?
What kinds of meaning does intonation convey?

Key theories

Autosegmental analysis of intonation: Pierrehumbert's account of English intonation as strings of high and low tones forming pitch accents and boundary tones, providing a discrete phonological representation of continuous pitch contours.
Tones as autosegments: The treatment of lexical tones as elements on a separate tonal tier, linked to tone-bearing units, which explains tonal stability, spreading, and contour formation, as systematized in Yip's work on tone.

History

Autosegmental treatment of tone emerged in the 1970s and was extended to intonation in Pierrehumbert's 1980 dissertation, which underlies the widely used autosegmental-metrical framework and transcription systems such as ToBI. Yip's 2002 book consolidated the typology and analysis of tone.

Debates

Discreteness of intonational categories: Researchers debate whether intonational pitch patterns are best modeled as a small set of discrete phonological categories or as continuous gradient parameters, given that pitch varies smoothly and meaning-bearing differences can be subtle.

Key figures

Janet Pierrehumbert
D. Robert Ladd
Moira Yip

Seminal works

pierrehumbert1980
yip2002
ladd2008

Frequently asked questions

What is a tone language?: A tone language is one in which pitch is used to distinguish word meanings or grammatical forms; for example, in Mandarin Chinese the same syllable can mean different things depending on its pitch contour.
What is a pitch accent in intonation?: In the autosegmental-metrical model, a pitch accent is a tonal event (a high or low tone, or combination) associated with a metrically prominent syllable, marking it as intonationally prominent within the phrase.