balladeer vs idyllist

balladeer

verb
  • To sing a ballad 

noun
  • A singer, particularly a professional singer who performs ballads. 

idyllist

noun
  • A writer of idylls; an idyllic poet or writer; one who depicts idyllic or pastoral subjects. 

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