consonance vs disagreement

consonance

noun
  • The repetition of consonant sounds, but not vowels as in assonance. 

  • Harmony; agreement; lack of discordance. 

disagreement

noun
  • A condition of not agreeing or concurring. 

  • An argument or debate. 

How often have the words consonance and disagreement occurred in a corpus of books? (source: Google Ngram Viewer )