Chorus vs Pop

Chorus

name
  • A song performed by the singers of such a group. 

  • A group of singers and dancers in a theatrical performance or religious festival who commented on the main performance in speech or song. 

Pop

name
  • Traditional nickname for a stage doorman. 

noun
  • The body of college prefects. 

  • A popular classical music concert. 

  • A social club and debating society at Eton College. 

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