bebop vs harmony

bebop

noun
  • An early form of modern jazz played by small groups and featuring driving rhythms and complex, often dissonant harmonies. 

verb
  • To participate in bebop jazz, such as by dancing in a way associated with the genre. 

  • To walk in an easygoing, carefree manner. 

harmony

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

  • 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 academic study of chords. 

  • Agreement or accord. 

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

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