intonation

Short definition from Wiktionary

Noun

1. 1
   The rise and fall of the voice in speaking.
2. 2
   Emotive stress used to increase the power of delivery in speech.
3. 3
   A sound made by, or resembling that made by, a musical instrument.
4. 4
   Singing or playing in good tune or otherwise.
5. 5
   Reciting in a musical prolonged tone; intonating or singing of the opening phrase of a plain-chant, psalm, or canticle by a single voice, as of a priest.