interlude vs interruption

interlude

noun
  • An intervening episode, etc. 

  • An entertainment between the acts of a play. 

  • A short piece put between the parts of a longer composition. 

verb
  • To provide with an interlude. 

interruption

noun
  • The act of interrupting, or the state of being interrupted. 

  • A time interval during which there is a cessation of something. 

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