contest vs harmony

contest

noun
  • Controversy; debate. 

  • Struggle for superiority; combat. 

  • A competition. 

verb
  • To strive earnestly to hold or maintain; to struggle to defend. 

  • To call into question; to oppose. 

  • To make a subject of litigation; to defend, as a suit; to dispute or resist, as a claim, by course of law. 

  • To contend. 

harmony

noun
  • Agreement or accord. 

  • A literary work which brings together or arranges systematically parallel passages of historians respecting the same events, and shows their agreement or consistency. 

  • A pleasing combination of elements, or arrangement of sounds. 

  • The relationship between two distinct musical pitches (musical pitches being frequencies of vibration which produce audible sound) played simultaneously. 

  • The academic study of chords. 

  • Two or more notes played simultaneously to produce a chord. 

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