finale vs inauguration

finale

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

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

inauguration

noun
  • The act of inaugurating, or inducting into office with solemnity; investiture by appropriate ceremonies. 

  • The formal beginning or initiation of any movement, enterprise, event etc. 

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