finale vs foreword

finale

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

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

foreword

noun
  • An introductory section preceding the main text of a book or other document; a preface or introduction. 

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