bebop vs fusion jazz

bebop

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

  • To walk in an easygoing, carefree manner. 

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

fusion jazz

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