shrill vs soprano

shrill

verb
  • To make a shrill noise. 

adj
  • Sharp or keen to the senses. 

  • Having a shrill voice. 

  • Fierce, loud, strident. 

  • High-pitched and piercing. 

noun
  • A shrill sound. 

soprano

verb
  • To sing or utter with high pitch. 

noun
  • Musical part or section higher in pitch than alto and other sections. 

  • Person or instrument that performs the soprano part. 

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