antiphony vs psalm

antiphony

noun
  • alternate, or responsive singing by a choir split into two parts; a piece sung or chanted in this manner 

  • alternate, or responsive ideas or opinions; juxtaposition 

psalm

noun
  • A sacred song; a poetical composition for use in the praise or worship of God. 

  • One of the hymns by David and others, collected into one book of the Old Testament, or a modern metrical version of such a hymn for public worship. 

verb
  • To extol in psalms; to make music; to sing 

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