finale vs preliminary

finale

noun
  • The chronological conclusion of a series of narrative works. 

  • The grand end of something, especially a show or piece of music. 

preliminary

adj
  • In preparation for the main matter; initial, introductory, preparatory. 

noun
  • Any of a series of sports events that determine the finalists 

  • A preparation for a main matter; an introduction. 

  • A relatively minor contest that precedes a major one, especially in boxing 

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