baritone vs thundering

baritone

noun
  • The male voice between tenor and bass 

  • 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 

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

thundering

noun
  • A loud percussive sound, like thunder. 

adj
  • Of, pertaining to, or accompanied by thunder. 

  • Producing a noise or effect like thunder; thunderous. 

  • Very great; extraordinary. 

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