intone vs psalmody

intone

verb
  • To utter with a musical or prolonged note or tone; to speak or recite with singing voice; to chant. 

  • To utter a tone; utter a protracted sound. 

  • To give tone or variety of tone to; to vocalize. 

psalmody

verb
  • To celebrate in psalms. 

noun
  • A collection of psalms. 

  • The singing or the writing of psalms. 

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