What: Varying vocal pitch (the pitch range) to break monotony and serve meaning.
Why: A single pitch lulls; variety holds attention and reveals the text's layers.
How: Raise pitch in questions and climaxes, lower it in resolution and reflection, letting the change serve meaning, not display.
Common mistake: Delivering on one pitch from start to finish.
Exercise: Read a paragraph and record it, then reread with a wider pitch range, and compare the effect.