falsetto vs lament

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. 

lament

noun
  • A song expressing grief. 

  • An expression of grief, suffering, sadness or regret. 

verb
  • To express grief; to weep or wail; to mourn. 

  • To feel great sorrow or regret; to bewail. 

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