bop vs ragtime

bop

noun
  • A style of improvised jazz from the 1940s. 

  • A very light smack, blow or punch. 

  • A party hosted by a college's JCR or MCR. 

  • A good song. 

verb
  • To walk the streets while socializing. 

  • To dance to this music, or any sort of music with a marked beat. 

  • To have sex. 

  • To strike gently or playfully. 

  • To fellate. 

ragtime

noun
  • A piece of music in this style. 

  • A musical form having a rhythm characterized by strong syncopation in the melody with a regularly accented accompaniment. 

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