baritone vs plangent

baritone

noun
  • a brass instrument similar to the euphonium, but with a cylindrical bore instead of a conical one; a baritone saxhorn 

  • The musical range between tenor and bass 

  • The male voice between tenor and bass 

  • A person, instrument, or group that performs in the range between tenor and bass 

plangent

adj
  • Having a loud, mournful sound. 

  • Beating, dashing, as waves. 

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