closeness vs harmony

closeness

noun
  • The state of being close (all senses) 

  • The shortest path between two vertices in a graph 

  • The state of being friends 

  • The state of being secretive 

  • The state of being mean or stingy 

harmony

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

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

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

  • The academic study of chords. 

  • Agreement or accord. 

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

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