carillon vs death knell

carillon

noun
  • A tune adapted to be played by musical bells. 

  • A set of bells, often in a bell tower, sometimes operated by means of a keyboard (manual or pedal), originating from the Low Countries. 

verb
  • To play a carillon. 

  • To ring out like a carillon. 

death knell

noun
  • The tolling of a bell announcing death. 

  • A sign or omen foretelling the death or destruction of something. 

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