exclamation vs falsetto

exclamation

noun
  • The sign "!" by which outcry or emphatic utterance is marked. 

  • A loud calling or crying out, for example as in surprise, pain, grief, joy, anger, etc. 

  • A clause type used to make an exclamatory statement: What a mess they made!; How stupid I was! 

  • A word expressing outcry; an interjection 

falsetto

noun
  • A person who sings in falsetto. 

  • The "false" (singing) voice in any human, usually airy and lacking a purity of vowels; created by utilizing the next highest vocal folds above those used for speech and normal range singing. It is commonly confused with the head voice register. 

verb
  • To sing or utter in falsetto. 

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