chanter vs yodeler

chanter

noun
  • One who chants or sings. 

  • The pipe of a bagpipe on which the melody is played. 

  • A priest who sings in a chantry. 

  • The hedge sparrow. 

yodeler

noun
  • One who sings so that their voice fluctuates rapidly between their normal chest voice and a falsetto, one who yodels. 

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