prosody

noun2

1. •
   The study of rhythm, intonation, stress, and related attributes in speech.

   • Brain imaging data shows us moreover that we have to go beyond linguistic units themselves to gain a full understanding of how prosody is processed in the brain. — 2007
2. •
   The study of poetic meter; the patterns of sounds and rhythms in verse.

   • But the system of prosody in Samson plainly forbids extrametrical syllables in the midst of the line, and there is certainly no other example. — 1894