prelude vs premiere

prelude

verb
  • To play an introduction or prelude; to give a prefatory performance. 

  • To introduce something, as a prelude. 

noun
  • An introductory or preliminary performance or event. 

  • A forerunner to anything. 

  • A standard module or library of subroutines and functions to be imported, generally by default, into a program. 

  • A short, free-form piece of music, originally one serving as an introduction to a longer and more complex piece; later, starting with the Romantic period, generally a stand-alone piece. 

premiere

verb
  • Of a film or play, to play for the first time. 

  • To present a film or play for the first time. 

noun
  • In a series of narrative works, the installment that is chronologically set first. 

  • The first episode of a television show or a particular season of that show. 

  • The leading woman of a group, especially in a theatrical cast. 

  • The first showing of a film, play or other form of entertainment, often held as a special event with celebrity guests. 

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