songster vs versifier

songster

noun
  • One who writes songs. 

  • A man who sings songs, especially as a profession; a male singer. 

  • A male songbird. 

  • A book of songs; songbook. 

versifier

noun
  • One who versifies. 

  • An inferior poet. 

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