double bass vs fool

double bass

noun
  • The deepest of all male voices. 

  • The largest stringed instrument of the violin family. 

fool

noun
  • Buddy, dude, man. 

  • A type of dessert made of puréed fruit and custard or cream. 

  • A jester; a person whose role was to entertain a sovereign and the court (or lower personages). 

  • A person with poor judgment or little intelligence. 

  • A particular card in a tarot deck, representing a jester. 

  • Someone who derives pleasure from something specified. 

adj
  • Foolish. 

verb
  • To act in an idiotic manner; to act foolishly. 

  • To trick; to deceive. 

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