1) The document provides definitions and descriptions of four basic English intonation tunes: the falling tune (glide down), the first rising tune (glide up), the second rising tune (take off), and the falling-rising tune (dive).
2) Each tune is defined by the shape and movement of pitch over the course of a tone group. Symbols are used to mark stressed syllables and pitch changes.
3) Examples illustrate how each tune is produced based on the number of important words and whether the stressed syllable of the final word is also the last syllable.