falsetto vs howl

falsetto

verb
  • To sing or utter in 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. 

howl

verb
  • To utter with outcry. 

  • To make a noise resembling the cry of a wild beast. 

  • To utter a loud, protracted, mournful sound or cry, as dogs and wolves often do. 

  • To utter a sound expressive of pain or distress; to cry aloud and mournfully; to lament; to wail. 

noun
  • Any similar sound. 

  • A prolonged cry of distress or anguish; a wail. 

  • The protracted, mournful cry of a dog, wolf or other canid; also of other animals. 

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