falsetto vs sing

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. 

sing

verb
  • To be capable of being sung; to produce a certain effect by being sung. 

  • To display fine qualities; to stand out as excellent. 

  • To soothe with singing. 

  • To confess under interrogation. 

  • In traditional Aboriginal culture, to direct a supernatural influence on (a person or thing), usually malign; to curse. 

  • To produce a 'song', for the purposes of defending a breeding territory or to attract a mate. 

  • To produce any type of melodious vocalisation. 

  • To produce musical or harmonious sounds with one’s voice. 

  • To express audibly by means of a harmonious vocalization. 

  • To make a small, shrill sound. 

  • To perform a vocal part in a musical composition, regardless of technique. 

  • To relate in verse; to celebrate in poetry. 

noun
  • The act, or event, of singing songs. 

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