countertenor vs tenorist

countertenor

noun
  • a part or section performing a countermelody against the tenor or main part 

  • male singing voice far higher than the typical male vocal range 

  • adult male singer who uses head tone or falsetto to sing far higher than the typical male vocal range 

tenorist

noun
  • A tenor singer. 

  • Someone who plays a tenor saxophone. 

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