shout down vs soprano

shout down

verb
  • To shout louder than (someone) in order to force through one's argument or point of view. 

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 shout down and soprano occurred in a corpus of books? (source: Google Ngram Viewer )