anthem vs antiphony

anthem

noun
  • A choral or vocal composition, often with a religious or political lyric. 

  • A very popular song or track. 

  • A hymn of praise or loyalty. 

verb
  • To celebrate with anthems. 

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 

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